Answer:
To find the solution to the inequality 9 - y > 12, we need to isolate the variable y.
9 - y > 12
Subtract 9 from both sides:
-y > 12 - 9
-y > 3
Since we have a negative coefficient for y, we need to flip the inequality sign when multiplying or dividing by a negative number. In this case, we can multiply both sides of the inequality by -1 to simplify it further:
y < -3
The inequality states that y is less than -3.
Now let's check which value among the given options satisfies this inequality:
A) 2: 2 is not less than -3. It is greater.
B) -6: -6 is less than -3. It satisfies the inequality.
C) 8: 8 is not less than -3. It is greater.
D) -1: -1 is less than -3. It satisfies the inequality.
Based on the given options, the values that satisfy the inequality y < -
Step-by-step explanation:
Problem 1-26
Jerrod and Sonia were working with their team on
problem 1-2 to put the function machines in order.
These functions are reprinted for you below.
f(x) = √x
g(x) = (x - 2)²
h(x) = 2*-7
k(x) = − − 1
Jerrod first put an input of 6 into the function g(x) and
got an output of -16. He wanted to try f(x) as his next
function in the order, but he thinks there might be a
problem using -16 as an input. Is there a problem?
Explain.
There is a problem with the input -16 in the function f(x) = √x
How to determine if there is a problem with the inputFrom the question, we have the following parameters that can be used in our computation:
f(x) = √x
g(x) = (x - 2)²
h(x) = 2x - 7
k(x) = -x -1
Also, we understand that
He puts the functions in the machine in order
So, we have
f(x) = √x
The input is -16
So, we have
f(-16) = √-16
The square root of -16 is not a real number
Hence, there is a problem with the input
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7. N.CN.7 Determine the zeroes for the equation below. Select all that apply.
x² - 6x +13=0
A. 1
B. 5
C. 13
D. -3 + 2i
E. 3+2i
F. 3+4i
G. 6 + 4i
H. 3-21
I .6-41
Answer:
D. -3 + 2i and E. 3+2i are the zeroes for the equation.
Step-by-step explanation:
A stainless steel patio heater is a square pyramid. The length of one side of the base is 25.2 in. The slant height of the pyramid is 93.7 in. What is the height of the pyramid?
The height of the square pyramid is approximately 91.92 inches.
How to solve for the heightIn a square pyramid, the slant height (s) is the hypotenuse of a right triangle formed by the height (h), half the length of the base (b/2), and the slant height (s). We can express this relationship as:
[tex]s^2 = (b/2)^2 + h^2[/tex]
Given that the length of one side of the base (b) is 25.2 in and the slant height (s) is 93.7 in, we can substitute these values into the equation:
[tex]93.7^2 = (25.2/2)^2 + h^2[/tex]
Simplifying:
[tex]8761.69 = 316.8 + h^2[/tex]
Subtracting 316.8 from both sides:
[tex]h^2 = 8444.89[/tex]
Taking the square root of both sides:
h ≈ 91.92 in
Therefore, the height of the square pyramid is approximately 91.92 inches.
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John’s deductible for his home insurance plan is $2000. A hurricane damages the
siding on his house, and the insurance adjuster approves any repairs plus an 8% tax. The
repair company estimates that it will cost $4750 before tax.
A) What is the total amount of the repair that is covered?
B) How much will John have to pay if he has had no previous claims in the past year?
C) How much will the insurance company have to pay?
A) The total amount of the repair that is covered by the insurance is $2970.
B) He would need to pay $2000.
C) The insurance company will have to pay $2750.
A) To calculate the total amount of the repair that is covered, we need to consider the deductible and the 8% tax.
The repair cost before tax is $4750. Since the insurance adjuster approves any repairs, the deductible of $2000 needs to be subtracted from the repair cost.
Repair cost after deductible = $4750 - $2000 = $2750.
Now, we need to add the 8% tax to the repair cost after deductible.
Tax amount = 8% of $2750 = $2750 * 0.08 = $220.
Total amount of the repair that is covered = Repair cost after deductible + Tax amount
Total amount of the repair that is covered = $2750 + $220 = $2970.
Therefore, the total amount of the repair that is covered by the insurance is $2970.
B) If John has had no previous claims in the past year, he would be responsible for paying the deductible amount. In this case, John's deductible is $2000. So, he would need to pay $2000.
C) The insurance company will be responsible for paying the remaining amount after the deductible has been paid. In this case, the remaining amount is the total repair cost minus the deductible.
Amount insurance company has to pay = Total repair cost - Deductible
Amount insurance company has to pay = $4750 - $2000 = $2750.
Therefore, the insurance company will have to pay $2750.
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Note: Picture is not drawn to scale.
Triangle A is a scaled version of triangle B. The dimensions of triangle A are twice the dimensions of triangle B. The area of triangle B is 24.5 sq cm.
What is the area of triangle A?
A.
343 sq cm
B.
98 sq cm
C.
49 sq cm
The area of triangle A is 98 sq cm. Option B is correct.
Since triangle A is a scaled version of triangle B, the ratio of their areas is equal to the square of the ratio of their corresponding side lengths.
If the dimensions of triangle A are twice the dimensions of triangle B, then the ratio of their side lengths is 2:1.
The ratio of their areas, therefore, is (2:1)² = 4:1.
Given that the area of triangle B is 24.5 sq cm, we can find the area of triangle A by multiplying 24.5 by the ratio of their areas:
Area of triangle A = 24.5 × 4 = 98 sq cm
Therefore, the area of triangle A is 98 sq cm.
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Given that X U(1, 12), calculate P(x < 4).
Round your answer to three decimal places.
0.273
0.333
0.727
0.250
The probability P(x < 4) will be 0.273. The correct option is A.
Probability is a branch of mathematics that deals with the measurement and analysis of uncertainty. In other words, probability is the measure of the likelihood or chance that a particular event will occur.
Since X is a continuous uniform distribution between 1 and 12, the probability density function (PDF) is given by:
f(x) = 1/11 for 1 ≤ x ≤ 12
= 0 otherwise
The probability P(X < 4) can be calculated as follows:
P(X < 4) = ∫[from 1 to 4] f(x) dx
= ∫[from 1 to 4] 1/11 dx
= [1/11 * x] (from 1 to 4)
= (4/11) - (1/11)
= 3/11
Rounding this to three decimal places, we get:
P(X < 4) ≈ 0.273
Therefore, the answer is 0.273.
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HELP! Whoever answers first to get marked as brainliest!
Pick the first option.
f(x) is dependent on x.
the 2nd option is wrong; the dependent variable is the output, the independent variable is the input.
3rd option is wrong, dependent determines the range.
4th is wrong, x is independent variable.
Find the perimeter of the square be sure to write the correct unit in your answer
The perimeter of the square that is given in the diagram above would be = 96cm
How to calculate the perimeter of a square?To calculate the perimeter of a square, the formula for the perimeter of a square should be used and this is given below.
That is ;
perimeter = 4a
where ;
a = side length = 24cm
Perimeter = 4× 24 = 96cm
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If the tangent line to y = f(x) at (7, 2) passes through the point (0, 1), find f(7) and f '(7)
f(7)=
f'(7)=
The value and the slope of the curve at point (x, y) = (7, 2) are 2 and 1 / 7, respectively.
How to find the slope of a line tangent to a curve
In this problem we find the case of a line tangent to a curve at point (x, y) = (7, 2) and that passes through the point (x, y) = (0, 1). The equation of the line is described by following formula:
y = m · x + b
Where:
m - Slopeb - Interceptx - Independent variable.y - Dependent variable.And the slope of the line is found by secant line formula:
m = Δy / Δx
First, determine the slope of the secant line:
m = (2 - 1) / (7 - 0)
m = 1 / 7
f'(7) = 1 / 7
Second, find the value of the curve:
f(7) = 2
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A random sample of 16 ATM transactions shows the mean transaction time of 2.8 minutes with a standard deviation of 1.2 minutes. Can you show the width of the 90 percent confidence interval for the true mean transaction time?
The width of the confidence interval is 1.2786.
From the question we are told that
The sample size is n = 16
The mean time is x = 2.8 minutes
The standard deviation is = 1.2 minutes
Generally, the degree of freedom is mathematically represented as
df = n-1
df = 15
From the question we are told the confidence level is 95%, hence the level of significance is =
α = 100-95
α = 0.05
Generally, the margin of error is mathematically represented as =
[tex]E = t_{\alpha/2}, 15 \times \sigma/\sqrt{n}[/tex]
E = 2.131 × 1.6 / √16
E = 0.6393
Generally, the width the confidence 95% confidence interval
W = 2E
W = 1.2786
Hence the width of the confidence interval is 1.2786.
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What is the percentage equivalent to 16 over 40?
Answer:
16/40 = 40%
Step-by-step explanation:
I divided 16/40 and got 0.4,
To turn a decimal into a percentage, either multiply by 100 or move the decimal to the right 2 times.
A group decides to go white rafting on the river map of the river has a scale in which 1.5 inches represents 5 miles on the map distance between the starting point in the ending point of their trip is 12 inches. What is the actual distance from the starting point to the ending point.
The actual distance from the starting point to the ending point is 39.96 miles.
Understanding How to Scale DistanceFor someone working with the map or scaled drawing, we can define the scale factor as the ratio between a distance on the drawing or map and the corresponding actual distance in the real world.
From the question,
1.5 inches on the map = 5 miles in actual distance
1 inch on the map = x miles
Perform cross multiplication
1 inch on the map = (5 x 1) / 1.5 = 3.33 miles/inch (scale factor)
The scale factor can then be expressed as ratio:
5/1.5 = 1:0.3
0r
5/1.5 = 10:3
So, the actual distance between the starting point and the ending point can be found by multiplying the length on the map by the scale factor:
Actual distance = Map distance x Scale factor
Actual distance = 12 inches x 3.33 miles/inch = 39.96 miles
Therefore, the actual distance from the starting point to the ending point is approximately 39.96 miles.
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A group of adults were asked how many children they have in their families. The bar graph below
shows the number of adults who indicated each number of children.
a) The number of families that were surveyed is given as follows: 17.
b) The percentage of families with exactly one children is given as follows: 29.4%.
What does a bar graph show?A bar graph shows the output considering a given input.
In this problem, the input is the number of children, while the output is the number of families that have the given number of children.
Hence:
4 families have zero children.5 families have one children.5 families have two children.2 families have three children.One family has five children.Hence, for item a, the total number of families is given as follows:
4 + 5 + 5 + 2 + 1 = 17.
Out of the 17 families, 5 have exactly one children, hence the percentage is given as follows:
5/17 x 100% = 29.4%.
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find the lower quartile 61 61 62 64 66 69 69 70 72 73 74 78
The lower quartile of the given data set is 63.
To find the lower quartile (Q1), we need to determine the value that divides the data set into the lower 25% of the values.
First, we need to sort the data set in ascending order: 61, 61, 62, 64, 66, 69, 69, 70, 72, 73, 74, 78.
Next, we calculate the position of the lower quartile using the formula: (n+1)/4, where n is the number of data points. In this case, we have 12 data points, so (12+1)/4 = 13/4 = 3.25.
Since 3.25 is not a whole number, we can find the lower quartile by taking the average of the data points at positions 3 and 4.
The data point at position 3 is 62, and the data point at position 4 is 64.
Therefore, the lower quartile (Q1) is the average of 62 and 64:
(Q1) = (62 + 64)/2 = 126/2 = 63.
Hence, the lower quartile of the given data set is 63.
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A study was commissioned to find the mean weight of the residents in certain town. The study found the mean weight to be 189 pounds with a margin of error of 8 pounds. Which of the following is not a reasonable value for the true mean weight of the residents of the town?
180.6 is not a reasonable value for the true mean weight of the residents of the town.
Given that the mean weight to be 189 pounds with a margin of error of 8 pounds.
So, the range of the mean weight is =
(189 + 8, 189 - 8)
(197, 181)
Therefore the range will lie between 197 and 181.
Hence 180.6 is not a reasonable value for the true mean weight of the residents of the town.
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2. Consider this dilation.
Pre-image
9 cm
Image
3 cm B
(a) Find the scale factor. Show your work. (5 points)
(2-a.) Scale factor Image length
Pre-image length
The scale factor is 1/3
How to determine the scale factorThe formula for calculating scale factor is expressed as;
SF = IL/PL
Such that the parameters are expressed as;
SF is the scale factorIL is the image lengthPL is the pre- imageFrom the information given, we have that;
IL = 3cm
PL =9cm
Substitute the values, we have;
Scale factor = 3/9
Divide the values, we have;
Scale factor = 1/3
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7. Tristan is in grade 12 and has worked at a local fast food chain for just over two years.
He earns $1500 per month. Tristan deposits $750 at the end of each month into an account that pays 3.25% per year, compounded monthly.
a) How much was in Tristan's account at the end of
one year?
b) How much was in Tristan's account at the end of
two years?
c) Compare your answers to parts a) and b). Explain why the answer to part b) is not double the answer to part a.
The compound interest is solved and answer to part b) is not double the answer to part a) because the interest is compounded monthly, not annually.
Given data ,
To calculate how much was in Tristan's account at the end of one year, we can use the formula for compound interest:
A = P(1 + r/n)^(nt)
where A is the amount at the end of the time period, P is the principal (the initial deposit), r is the annual interest rate (as a decimal), n is the number of times the interest is compounded per year, and t is the time in years.
In this case, P = $750, r = 0.0325, n = 12 (since the interest is compounded monthly), and t = 1. Plugging in these values, we get:
A = $750(1 + 0.0325/12)⁽¹²ˣ¹⁾ = $8,086.43
Therefore, there was $8,086.43 in Tristan's account at the end of one year.
b)
To calculate how much was in Tristan's account at the end of two years,
t = 2,
A = $750(1 + 0.0325/12)⁽¹²ˣ²⁾ = $16,575.29
Hence , there was $16,575.29 in Tristan's account at the end of two years
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Using the graphing function on your calculator, find the solution to the system
of equations shown below.
A. More than 1 solution
B. No solution
C. x = 3, y=-3
D. x = 4, y = -4
3y-3x = -9
4y-4x=-12
SUBMIT
The number of solutions the system of equations have is (a) more than one solutions
How to deterine the number of solutions the system of equations have?From the question, we have the following parameters that can be used in our computation:
3y-3x = -9
4y-4x=-12
Simplify the equations
So, we have
y - x = -3
y - x = -3
Subtract the equations
0 = 0
The above equation is true for all values of x and y
This means that the number of solutions in the equation is many i.e. more than one solutions
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To pay for a home improvement project that totals $20,000, a homeowner is choosing between two different credit card loans with an interest rate of 6%. The first credit card compounds interest semi-annually, while the second credit card compounds quarterly. The homeowner plans to pay off the loan in 10 years.
Part A: Determine the total value of the loan with the semi-annually compounded interest. Show all work and round your answer to the nearest hundredth.
Part B: Determine the total value of the loan with the quarterly compounded interest. Show all work and round your answer to the nearest hundredth.
Part C: What is the difference between the total interest accrued on each loan? Explain your answer in complete sentences.
Part A: The total value of the loan with semi-annual compounding is $36,351.74.
Part B: The total value of the loan with quarterly compounding is $36,645.80.
Part C: The difference between the total interest accrued on each loan is $294.06, with the loan that compounds quarterly accruing more interest due to the more frequent compounding periods, which results in a higher effective interest rate over the same time period.
Part A:
To find the total value of the loan with semi-annually compounded interest, we can use the formula for compound interest:
[tex]A = P(1 + r/n)^{ (nt) }[/tex]
Where:
A = the total amount paid
P = the principal amount borrowed
r = the annual interest rate (as a decimal)
n = the number of times the interest is compounded per year
t = the number of years
In this case, P = $20,000, r = 0.06 (6%), n = 2 (semi-annually compounded), and t = 10 years.
[tex]A = 20000(1 + 0.06/2)^{(2*10) } = $36,109.13[/tex]
Therefore, the total value of the loan with semi-annually compounded interest is $36,109.13.
Part B:
To find the total value of the loan with quarterly compounded interest, we use the same formula but with n = 4 (quarterly compounded):
[tex]A = 20000(1 + 0.06/4)^{(4*10)} = $36,533.71[/tex]
Therefore, the total value of the loan with quarterly compounded interest is $36,533.71.
Part C:
The difference between the total interest accrued on each loan is the difference between the total amount paid for each loan minus the principal borrowed:
For the semi-annually compounded loan:
Total interest = $36,109.13 - $20,000 = $16,109.13
For the quarterly compounded loan:
Total interest = $36,533.71 - $20,000 = $16,533.71
The difference in total interest accrued between the two loans is:
$16,533.71 - $16,109.13 = $424.58
The loan with quarterly compounded interest accrues more interest due to the higher compounding frequency.
The difference in total interest accrued between the two loans is relatively small, but over time it can add up.
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How to right 0.76 in standard decimal form math
Answer:
3/4
Step-by-step explanation:
(75 divided by 25 / 100 divided by 25) = 3/4
I need help………………………………………
The side length x and y of the right triangle are [tex]\frac{8\sqrt{3} }{3}[/tex] and [tex]\frac{16\sqrt{3} }{3}[/tex] respectively.
What are the value of side length x and y ?The figure in the image is a right triangle.
Angle θ = 60°
Opposite to angle θ = 8
Adjacent to angle θ = x
Hypotenuse = y
To solve for side lengths x and y, we use the trigonometric ratio.
Note that:
sine = opposite / hypotenuse
cosine = adjacent / hypotenuse
tangent = opposite / adjacent
First, we determine the value of x.
tanθ = opposite / adjacent
tan( 60 ) = 8/x
x = 8/tan( 60 )
x = [tex]\frac{8\sqrt{3} }{3}[/tex]
Next, solve for y:
sinθ = opposite / hypotenuse
sin( 60 ) = 8/y
y = 8/sin( 60 )
y = [tex]\frac{16\sqrt{3} }{3}[/tex]
Therefore, the value of x is [tex]\frac{8\sqrt{3} }{3}[/tex] and the value of y is [tex]\frac{16\sqrt{3} }{3}[/tex].
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Is this figure a polygon? Explain.
a closed figure with six straight edges meeting at corners
Marisol designed a spinner for a game. The spinner is fair if there is an equal chance for the
pointer to land on each letter. The spinner has 6 equal sized sections. Two sections are labeled
A
a. What is the probability of the pointer landing on A?
b. What is the probability of the pointer landing on C, D or E?
C.
Is the spinner a fair spinner?
a. Probability of landing on A = 2/6 = 1/3. b. Probability of landing on C, D, or E = 3/6 = 1/2. c. The probabilities are not equal, the spinner is not fair.
a. Since there are 6 equal-sized sections on the spinner and only 2 sections labeled A, the probability of the pointer landing on A is given by:
Probability of landing on A = Number of favorable outcomes / Total number of possible outcomes
Number of favorable outcomes = 2 (since there are 2 sections labeled A)
Total number of possible outcomes = 6 (since there are 6 equal-sized sections on the spinner)
Probability of landing on A = 2/6 = 1/3
b. To find the probability of the pointer landing on C, D, or E, we need to determine the number of favorable outcomes (sections labeled C, D, or E) and the total number of possible outcomes.
Number of favorable outcomes = 3 (since there are 3 sections labeled C, D, or E)
Total number of possible outcomes = 6 (since there are 6 equal-sized sections on the spinner)
Probability of landing on C, D, or E = Number of favorable outcomes / Total number of possible outcomes
Probability of landing on C, D, or E = 3/6 = 1/2
c. To determine if the spinner is fair, we need to check if the probabilities of landing on each letter are equal. From the previous calculations, we found that the probability of landing on A is 1/3 and the probability of landing on C, D, or E is 1/2.
Since the probabilities are not equal, the spinner is not fair.
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quadrilateral a'b'c'd' is the image of quadrilateral abcd under a rotation about the origin (0 0) A) -45 degrees B) -15 degrees C) 15 degrees D) 45 degrees
The rotation's angle is -45 degrees.
Quadrilateral A'B'C'D' is the representation of quadrilateral ABCD rotated around (0,0).
Consider D and D's coordinates.
D(2,3) and D'(-2,-3)
Now, Join D and D' then
<DOD = 45
Here, the actual rotation is -45 degree rotation can be visualized as a reflection across the y-axis followed by a 45 degree rotation in the clockwise direction.
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a dilation has center (0,0). Find the image of the point L(-4,0) for the scale factor 7.
The image of the point L(-4,0) after a dilation with a center of (0,0) and a scale factor of 7 is the point L'(-28,0).
A dilation with a center of (0,0) and a scale factor of 7 means that every point in the plane will be multiplied by a factor of 7 from the origin.
To find the image of the point L(-4,0) after a dilation with a center of (0,0) and a scale factor of 7, we can simply multiply the coordinates of L by the scale factor.
The coordinates of the image point L' will be:
L' = (-4 × 7, 0 × 7) = (-28, 0)
Therefore, the image of the point L(-4,0) after a dilation with a center of (0,0) and a scale factor of 7 is the point L'(-28,0).
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Fondue pot
Regular price: $92
Discount: 45%
Sales tax: 6%
Final price:
The cost of the fondue pot after the 45% discount and 6% sales tax is calculated using the following equations:
$92 × 0.45 = $41.40 $41.40 × 0.06 = $2.48$41.40 + $2.48 = $43.88In this example, the original price of the fondue pot is $92 and the discount is 45%, which would make the discount amount $41.40. The sales tax is 6%, which would be $2.48
Therefore, the final price of the fondue pot would be $43.88
Hope this helps! Have a great day. :)Which of the following statements is NOT true?
The blues is often in a 12-bar format
The roots of the blues were in New York City.
The blues influenced music that came later.
Lyrics are important to the blues.
‘
The statement "The roots of the blues were in New York City" is NOT true.
among the late 19th and early 20th centuries, the blues first appeared among African American communities in the southern United States, particularly Mississippi.
African American musical traditions such field hollers, work songs, and spirituals were among those that influenced the development of the blues. African Americans utilised it to express their joys and achievements as well as their struggles and tribulations.
Even though the blues eventually spread to other parts of the United States and the world, its roots are firmly planted in the rural South.
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Which of the following functions is graphed below? HELP
The equation of the functions represented on the graph are (b)
Which of the functions is represented on the graph?From the question, we have the following parameters that can be used in our computation:
The graph
On the graph, we have the following intervals:
Interval 1: Closed circle that stops at 1Interval 2: Open circle that starts at 1When the intervals are represented as inequalities, we have the following:
Interval 1: x ≤ 1
Interval 2: x > 1
This means that the intervals of the graphs are x ≤ 1 and x > 1
From the list of options, we have the graph to be option (b
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Quinn is baking sweet potato pies. The table shows the ratio of cups of sugar to number of pies.
Number of Pies 3 5 9
Cups of Sugar 1 and one half 2 and one half 4 and one half
How many cups of sugar will Quinn need to make 12 pies?
Graph the function -40x^2 + 640x. Label the vertex.
The graph is given below.
The vertex for the function is located at (8, 1280).
We have,
The given function is a quadratic function of form f(x) = ax² + bx + c, where a = -40, b = 640, and c = 0.
To find the vertex, we need to use the formula:
x = -b/2a
where a = -40 and b = 640.
So,
x = -b/2a = -640/(2(-40)) = 8
Now, we can find the y-coordinate of the vertex by plugging x = 8 into the function:
y = -40(8)^2 + 640(8) = 1280
Therefore,
The vertex for the function is located at (8, 1280).
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