The function f(x) is a quadratic function and a limited table of values is provided
below. Write the equation of the quadratic polynomial in standard
form.

The Function F(x) Is A Quadratic Function And A Limited Table Of Values Is Providedbelow. Write The Equation

Answers

Answer 1

Answer:

x^2 - x - 12

Step-by-step explanation:

The quadratic will have the form f(x) = ax^2 + bx + c

Note that when x = 0, y = -12.  Thus, we have f(0) = a(0)^2 + b(0) + c = -12, and the function (so far) is f(x) = ax^2 + bx - 12.

Arbitrarily choose two more ordered pairs from the table.  I've chosen (-3, 0) and (-4, 8).

For (-3, 0), the quadratic becomes 0 = a(-3)^2 + b(-3) - 12, or:

0 = 9a - 3b, and

For (4, 8), f(4) = 8 = a(4)^2 + b(8), or 8 = 16a + 8b, or 1 = 2a + b, or b = 1 - 2a

Solve 0 = 16a + 4b and b = 1 - 2a for a and b.

Let's use substitution:   Substitute b = 1 - 2a into 0 = 9a - 3b or 3a - b = 0:

3a - 1 - 2a = 0, or a = 1.

Since b = 1 - 2a, we get b = 1 - 2(1) = -1

and so a = 1, b = -1 and c = -12

Then the polynomial must be:  x^2 - x - 12


Related Questions

Solve!
1 + 4 = 5
2 + 5 = 12
3+ 6 = 21
8+11 = ?

EXPLAIN!

Answers

Answer:

1 + 4 = 5

2 + 5 = 12

3 + 6 = 21

8 + 11 = 96

Step-by-step explanation:

Multiplied and added by the same numer:

1+4×1

2+5×2

3+6×3

8×11×8

The value of 8 + 11 = 96.

Here given that,

1 + 4 = 5

2 + 5 = 12

3 + 6 = 21

8 + 11 = ?

How to find Missing number?

Finding the missing number in a sequence or series is a fun activity for student to identity the pattern and memorize numbers, fundamental mathematical operations or even counting.

Now, pattern is given as:

1 x 4 + 1 = 5

2 x 5 + 2 = 12

3 x 6 + 3 = 21

Hence,

8 x 11 +8 = 96

So, The value of 8 + 11 = 96.

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PLEASE HELP ME ASAP!!! I REALLY NEED HELP :(

Answers

Answer:

See below

Step-by-step explanation:

GivenR is the midpoint of SQ and PTTo proveΔPQR ≅ ΔTSRSolution

R is the midpoint of SQ

SR = 1/2SQ and RQ = 1/2SQ ⇒ SR ≅ RQ

R is the midpoint of PT

PR = 1/2PT and RT = 1/2PT ⇒ PR ≅ RT

SQ and PT intersect at point R ⇒

∠PRQ ≅ ∠TRS as vertical angles

Triangles PQR and TSR have two sides and the included angle congruent, therefore:

ΔPQR ≅ ΔTSR,

as per SAS congruence postulate

If two sides and the included angle in one triangle are congruent to two sides and the included angle in another triangle, then the two triangles are congruent

If 5p = 100, the value of the variable p is

Answers

Answer: p = 20

Step-by-step explanation: 5 x 20 = 100

-zomba

A circle's circumference is approximately 88 cm. Estimate the diameter, rounding to the nearest WHOLE number. (don't forget your units and use 3.14 if you need to use )

Answers

Answer:

diameter = 28 cm

Step-by-step explanation:

circumference = 2πr

88 cm = 2 * 3.14.*r. ( π = 3.14 )

r = ( 88)/(3.14*2)

r = 14 cm

diameter = 2 * radius

diameter = 2 * 14 cm

diameter = 28 cm

Answer:

28 cm

Step-by-step explanation:

Circumference formula:

C = πd

Substitute values of circumference and the π to find the diameter:

d = C/πd = 88/3.14 = 28 cm (rounded)

HELP PLEASE

Which graph best represents the equation y= 2x

Answers

Answer:

The answer is H.

Step-by-step explanation:

There is no "b" in this y = mx + b, so it has to go through zero, eliminating the bottom two. If we insert y = 2(1), the point should be at (1, 2), and if when looking at the possible answers, we can go with letter H.

At the movies, a couple bought 2 medium drinks and a large popcorn for $13.85. At the same theater, a family bought 3 medium drinks and 2 large popcorns for a total of $23.90. What is the cost of a large popcorn?

Answers

Drink = $3.80
Popcorn = $6.25

(6.25x2) + (3.80x3)
12.50 + 11.40
23.90


6.25 + (3.80 x2)
6.25 + 7.60
13.85

PLS HELP PLS ITS TIMES ILL GIVEBRAINLIEST IF CORRECT HELP PLEASE!!!!!!!!!!!!!!!!!!!!!!

Answers

Answer: A

Step-by-step explanation:

What is the vaule of 5/6 ÷ 3/4

Answers

Answer:

0.625

Step-by-step explanation:

5/6 x 3/4 = 0.625 in decimal form.

5/6 / 3/4
5/6 x 4/3
20/18 = 1 2/18

simplify each expression.
(4 - 2i) - (-3 + i) ​

Answers

Answer:

2i - (-3 + i)

Step-by-step explanation:

I think this is it. Sorry if it's wrong

Answer:

7 -3i

Step-by-step explanation:

Simplify by combining the real and imaginary parts of each expression

The radius of a cylinder is increasing at a constant rate of 2 inches per minute. The volume remains a constant 440 cubic inches. At the instant when the radius of the cylinder is 44 inches, what is the rate of change of the height? The volume of a cylinder can be found with the equation V= [tex]\pi r^2h[/tex] Round your answer to three decimal places.

Answers

Answer:

The rate of change of the height is approximately [tex]-6.577\times 10^{-3}\,\frac{in}{min}[/tex].

Step-by-step explanation:

From Geometry we know that volume of cylinder ([tex]V[/tex]), measured in cubic inches, is expressed by:

[tex]V = \pi\cdot r^{2}\cdot h[/tex] (1)

Where:

[tex]r[/tex] - Radius, measured in inches.

[tex]h[/tex] - Height, measured in inches.

Given that volume remains constant, the expression for the rate of change of the height ([tex]\dot h[/tex]), measured in inches per minute, is:

[tex]2\pi\cdot r \cdot h \cdot \dot r + \pi \cdot r^{2}\cdot \dot h = 0[/tex]

[tex]2\cdot h\cdot \dot r + r\cdot \dot h = 0[/tex]

[tex]r\cdot \dot h = -2\cdot h \cdot \dot r[/tex]

[tex]\dot h = -\frac{2\cdot h\cdot \dot r}{r}[/tex]

[tex]\dot h = - \left(\frac{2\cdot \dot r}{r}\right)\cdot \left(\frac{V}{\pi\cdot r^{2}} \right)[/tex]

[tex]\dot h = -\frac{2\cdot \dot r \cdot V}{\pi\cdot r^{3}}[/tex] (2)

Where [tex]\dot r[/tex] is the rate of change of the radius, measured in inches per minute.

If we know that [tex]r = 44\,in[/tex], [tex]\dot r = 2\,\frac{in}{min}[/tex] and [tex]V = 440\,in^{3}[/tex], then the rate of change of the height is:

[tex]\dot h = - \frac{2\cdot \left(2\,\frac{in}{min} \right)\cdot \left(440\,in^{3}\right)}{\pi\cdot (44\,in)^{3}}[/tex]

[tex]\dot h \approx -6.577\times 10^{-3}\,\frac{in}{min}[/tex]

The rate of change of the height is approximately [tex]-6.577\times 10^{-3}\,\frac{in}{min}[/tex].

4a^2b^2,12ab^2,-8a^2b

Answers

Did that help you...hopefully

Point I is on line segment HJ. Given HI = x, IJ = 2x + 9, and H J = 4x,
determine the numerical length of IJ.

Answers

:
length is 199
:
first you do this then that

The two prisms below are similar. What is the value of x?
24
4
16
A. 4
B. 24
C. 16
D. 1

Answers

Answer:

A

Step-by-step explanation:

Since the prisms are similar then the ratios of corresponding sides are equal, that is

[tex]\frac{16}{4}[/tex] = [tex]\frac{x}{1}[/tex] ( cross- multiply )

4x = 16 ( divide both sides by 4 )

x = 4 → A

The value of x on the prism is 4.

What are Similar Figures?

Similar figures are those figures which are having the same shape, but the sizes are different.

Given are two prisms.

We have to find the length of x.

Given that they are similar.

So the ratio between their dimensions is equal.

So,

x / 1 = 16 / 4

x = 4

Hence the value of x is 4.

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What input will result in an output of 12 for the following functions d(x) = 2x -4

Answers

Answer:

8

Step-by-step explanation:

12=2x-4

12+4 = 2x

16 = 2x

16/2 =x

x =8

check

d(x) = 2(8)-4

=16-4

=12

Task 6

Jeff's weekly salary equals a commission of his

sales plus a basic amount. If his sales are $849. he

earns $417.92. If his sales are $1011, he earns

$430.88.

yo

Q: Find Jeff's total earnings if his sales are$948.

Answers

Answer:

His total earnings for sales of $948 is $425.84

Step-by-step explanation:

Let the percentage of his commission be a percentage with its value represented as x and b be his base salary , y as his total earnings

So we have;

y = x% of sales + base salary

for 849 sales and 417.92 , we have

417.92 = 8.49x + b •••••••(i)

for 1011 sales and 430.88 servings

430.88 = 10.11x + b ••••••(ii)

Subtract i from ii

12.96 = 1.62x

x = 12.96/1.62

x = 8

To get b, we substitute

430.88 = 10.11(8) + b

b = 430.88 - 10.11(8) = 350

Commission is 8% , base earnings is $350

So for total sales of 948;

y = 8% of 948 + 350

y = $425.84

Plz help!!
A concession stand sells 3 hot dogs for every 4 hamburgers. Hot dogs come in packages of 8.
How many packages of hot dogs does the owner need to buy if he predicts he will sell 256 hamburgers?

Answers

Answer:

The concession stand sold  46  hot dogs and  32  hamburgers.

Step-by-step explanation:

Does anyone else play nitro type?

Answers

Answer:

I do!

Step-by-step explanation:

Answer:

no sorry but i do know some friends that play..

Could 8 be a solution? Why or why not?
x2 = 49

Answers

no because if you substitute 8 for x, you would get 16=49. which is not true

Answer:

it cannot be

Step-by-step explanation:

x²=49

x=√49

x=7

Thus answer is 7 and not 8


The measure of an exterior angle of a triangle is 40°. What is the sum of the measures of the corresponding remote interior angles?

Answers

Answer:

Remember that the two non-adjacent interior angles, which are opposite the exterior angle are sometimes referred to as remote interior angles. An exterior angle of a triangle is equal to the sum of the two opposite interior angles. The sum of exterior angle and interior angle is equal to 180 degrees

HELP PLEASE!!! *document*

Answers

hopefully you can understand this, so we just plotting the points?

Dennis can walk about 2 5/6 miles each hour. About how far can he walk in 3 hours 15 ​minutes?

Answers

Answer:

24 13/34

Step-by-step explanation:

The distance covered by Dennis will be 9.23 miles.

What is speed?

Speed is defined as the ratio of the time distance traveled by the body to the time taken by the body to cover the distance. Speed is a scalar quantity and does not require any direction to represent it.

Given that Dennis can walk about 2(5/6) miles each hour. The distance covered by Dennis in 3 hours 15 minutes will be calculated as:-

Distance = 2 ( 5 /  6)  x  3 hour 15 minute

Distance = 2.84 x 3 ( 1 / 4)

Distance = 2.84 x 3.25

Distance = 9.23 miles.

Therefore, the distance covered by Dennis will be 9.23 miles.

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5^2= (-5)^2
true or false

Answers

It’s True because of 5 square is equal to 25
Than (-5) square is also get the same value as 5^2

One number is 2 times a first number. A third number is 100 more than the first number. If the sum of the three numbers is 468 ​, find the numbers

Answers

Answer:

Step-by-step explanation:

Givens

Let the first number = x

Let the second number = 2x

Let the third number = x + 100

Total = 468

==============

Solution

x + 2x + x + 100 = 468                    Combine the xs

4x + 100 = 468                                Subtract 100 from  both sides

4x = 468 - 100

4x = 368                                          Divide by 4

x = 368/4

x = 92

===============

Answer

First number =                     92

Second num = 2 * 92=       184

Third number = 92 + 100= 192

Total                                    468

The volume of a cube is 96 cubic millimeters. What is the length of each edge of the cube?

Answers

Answer:

V= a³ => 96 = a³ => a= ∛96 =2∛12

The length of each edge of the cube : C : 2∛12

Step-by-step explanation:

You travel 30 out of 200 miles of the trip. What percent of the trip have you traveled already?

Answers

Answer:

15%

Step-by-step explanation:

Answer:

15%

Step-by-step explanation:

30/200 = .15

move the decimal 2 places back and replace it with a %

What is the sum of 1/8+5/16+3/8

Answers

Answer:

i think it's 13/16

Step-by-step explanation:

1/8 times 2 is 2/16 and 3/8 times 2 is 6/16 so add all up to get 13/16

13/16.........................:.......................

If a quadrilateral is a rectangle, then it is a parallelogram (True or False)

Answers

It is a true in my view please check again by yourself

12x+3y=-9

find y- intercept​

Answers

Answer:

3

Step-by-step explanation:

subtract 3y from both sides

add 9 to both sides

3y=12x+9

divide everything by 3

y=4x+3

y-intercept is 3

Which list shows the fractions in order from greatest to least? will mark brainliest !!
pleas help ​

Answers

Answer:

B) 2/3, 1/2, 2/5


The sum of four consecutive odd
integers is – 40.
What is the largest integer?

Answers

Answer:

136

Step-by-step explanation:

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