what is the rate of change in y= 2x+3
Answer:
The Answer is 2
EXPLANATION:
y(x)=2x+3
y(x+Δx)=2(x+Δx)+3
=2x+2Δx+3
Δy=y(x+Δx)−y(x)
=(2x+2Δx+3)−(2x+3)
=2Δx
⇒Δy=2Δx, Δy/Δx =2
The rate of change in the equation of a line in slope-intercept form
y = 2x + 3 is 2.
What are lines and their slopes?We know lines have various types of equations, the general type is
Ax + By + c = 0, and the equation of a line in slope-intercept form is
y = mx + b.
Where slope = m and b = y-intercept.
the slope is the rate of change of the y-axis with respect to the x-axis and the y-intercept is the (0,b) where the line intersects the y-axis at x = 0.
Given, An equation of a line y = 2x + 3.
This is in slope-intercept y = mx + b, where 'm' is the slope.
Therefore, The rate of change in y = 2x + 3 is 2.
learn more about lines and slopes here :
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1. Joyce took a 3-day bicycle trip. On the second day of the trip, she rode 36 miles. On the third day she rode
3 times as far as she did on the first day. If the trip was 108 miles long, how far did Joyce ride on the third
day?
please help me! show all ur work!!!
I can travel 612 miles in 1 hour in my super speedy plane. Assume that there are 5,280 ft per mile. How many feet would I travel in 1 minute?
Answer:
53856 feet
Step-by-step explanation:
612*5280 represents how much you would travel in an hour. Then divide the product by 60 to get per minute. 612*5280=3231360ft per hour. 3231360/60=53856 feet per minute. Happy to help!
What is the follow button for here on BRAINLY????
Answer:
you go to a person page you want to follow and than click on little person with + sing.
Consider the Graph. a. Determine four lines of symmetry for the graph. b. How many other lines of symmetry does this graph possess? c. What other type of symmetry does this graph posses
Answer:
Step-by-step explanation:
a). Lines of symmetry of the circle given in the picture are,
x = 0
y = 0
y = -x
y = x
b). Since, a circle has infinite lines of symmetry (diameters) so the other lines of symmetry of the given circle will be all infinite numbers of the diameters.
c). Other symmetry this circle has a point symmetry.
(Looks the same when rotated by 180°).
You plant a rose bush that is 8 inches tall. Each year it will grow 4 inches. Write an expression for the height after n years.
The answer would be 8+4n
I hope this helps
f-4=6f + 26 what is f
Answer:
the answer is f=-6
Answer:
f = - 6
Step-by-step explanation:
Step 1:
f - 4 = 6f + 26 Equation
Step 2:
- 4 = 5f + 26 Subtract f on both sides
Step 3:
- 30 = 5f Subtract 26 on both sides
Step 4:
f = - 30 ÷ 5 Divide
Answer:
f = - 6
Hope This Helps :)
Flora Kenyon made a deposit of $1,600 to her savings account on July 1. For the next year she made no other deposits or withdrawals. Her bank pays an annual interest of 3.1% compounded quarterly. Find the interest earned by Flora by July 1 of the next year.
Answer:
A = $1,650.24
Step-by-step explanation:
A = P(1 + r/n)^nt
Where
A = future value
P = present value = $1,600
r = interest rate = 3.1% = 0.031
n = number of periods = 4
t = time = 1 year
A = P(1 + r/n)^nt
= 1,600( 1 + 0.031 / 4)^4*1
= 1600( 1 + 0.00775)^4
= 1600(1.00775)^4
= 1600(1.0314)
= 1,650.24
A = $1,650.24
help meee will give brainlistq ( please i will do anything but ASAP)
Answer:
y = 7/5 x + 34/5
Step-by-step explanation:
please help will give brainlyisttt
Answer:
Either a or c
Step-by-step explanation:
Sorry I'm not entirely sure.
Answer:
Well i do not think you will be able to explain a drawing but here it goes.
Step-by-step explanation:
A. You will draw the model and color it halfway
B. You will draw a model and color it about done but - - away from the end
C.You will draw a model and color it about - - in.
D.You will draw a model and color it about - - in.
E.You will draw a model and color it about 20% more than A but make sure its a little more like a inch or so.
which system of equations does the graph represent?
Clara lends half her collection of formal attires to her sister, Susan. Clara then buys
four more attires. If she has 12 attires now, how many attires did Clara had initially?
Answer:
clara had 16 but she gave half that leaves us with 8 + 4 gives u 12
x
2
+ 4 = 12 ; 16 attires
Answer:
16
Step-by-step explanation:
a:2+4 =12
a:2=12-4
a:2=8
a=8 ×2
a=16 dresses
Step-by-step explanation:
brainliest would be super appreciated
find x and y
x=_____
y=_____
ASAP ASAP ASAP ASAP ASAP
Answer:
150 (D)
Step-by-step explanation:
A car was valued at $35,000 in the year 1990. The value depreciated to $13,000 by the year 2002.
A) What was the annual rate of change between 1990 and 2002?
B) Assume that the car value continues to drop by the same percentage. What will the value be in the year 2005 ?
Answer:
14.6328% , $5836.03
Step-by-step explanation:
Here we are going to use the formula
= 39000
r=?
= 11000
n=8
Hence
Hence r= 0.1463
In percentage form r = 14.63%
Now let us see calculate the value of car in 2003 that is after 12 years
we use the main formula again
= 39000
r=0.1463
= ?
n=12
Hence the car's value will be depreciated to $5840.34 (approx) by 2003.
Write a linear function f with f(5)=7 and F(-2)=0.
Answer:
f(x)=x+2
Step-by-step explanation:
Slope= (7-0)/(5-(-2)) = 7/7 = 1
Y-intercept= 2
substitute the slope, 1, for m and the y-intercept, 2, for b to get:
f(x)=x+2
hope this helps!
The linear function f with f(5)=7 and F(-2)=0 is f(x) = x + 2
f(5) = 7
This means when x = 5 , y = 7
(5, 7)
f(-2) = 0
(-2, 0)
This implies when x = -2 , y = 0
Using the linear function formula,
y = mx + b
where
m = slope
b = y-intercept
Therefore, the function can be represented as follows:
m = 0 - 7 / -2 - 5 = -7 / -7 = 1
Therefore,
y = x + b
0 = -2 + b
b = 2
The function in relation to x can be represented as follows:
f(x) = x + 2
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what is the answer for -5x-8=3x+10
Answer:
x=− 9 /4
or
=−2.250
Step-by-step explanation:
PLZZZZZZZZZZZZZZZZZZZZZZZZZZZZ HELP ME I BEGGING YOU PLZZZZZZZZZZZZZZZ HELP!!!! (55 POINTS)
1. Evaluate 8a - b if a = 10 and b = 6
74
38
1000
9000
2. Evaluate expression if a=3 and b=4 . 4b-5a
2
1
-8
8
3. Evaluate Expressions a=3 b=4, 7a + 8b x 2
110
100
80
85
4.Strawberries are $1.95 a pound. Write an expression for p pounds of strawberries.
$1.95+p
$1.95-p
$1.95/p
$1.95p
5. Kenneth has g gumballs. Maggie has 29 fewer gumballs than Kenneth. Choose the expression that shows how many gumballs Maggie has.
g+29
29g
g-29
g ÷ 29
6) 5 + 36 ÷ 2 x 3 - 4
7
55
12
78
7)18 + (6 – 2) × 2
26
29
40
44
8.Expand -3( 2r + 5s).
-6r - 15s
-6r + 15s
-6r - 15
-6r + 2s
9. Expand and simplify 5(2 - 3y)
10 - 15y
10 + 15y
10 - 2y
10 - 3y
10.Factor: 7x + 49y
7(x + 7y)
7(x + y)
can't be factored
7(x + 48y)
11. Factor 6p − 36
6(p − 6)
2(3p − 36)
3(2p − 6)
can't be factored
12. Which expression contains exactly 3 terms?
A. 5 + 6xy
B. 8 + 2y - 5x
C. 9 + 4t
D. 24xy
13. What is the coefficient of x?8 + 5x - y
A. 8
B. 0
C. 5
D. -5
14. Identify the "like terms" in the expression: 2x + 4y - 3x + y - x
A. 2x and 4y and -3x
B. 2x and -3x and x; 4y and y
C. they are all like terms
D. there are no like terms
15. Factor 5x − 25
Answer:
1. 74 because 8(10) - 6
2.4(4) - 5(3) = 1
3. 7(3)+8(4) * 2 = 106
4. A
5.a
6. 20.5
7.26
8.a
9.a
10a
Step-by-step explanation:
The point (-3, -5) is on the graph of a function. Which equation must be true regarding the function?
SAAB
Of(-3) = -5
f(-3,-5) = 8
f(-5) = -3
O f(-5, -3) = -2
Answer:
F(-3) = -5
Step-by-step explanation:
I got it right on the test
Is there anyone good at algebra 2 to solve this problem? I need help with part c.
Answer:
40 ft
Step-by-step explanation:
The maximum height of the ball is the y- coordinate of the vertex
Given a parabola in standard form then the x- coordinate of the vertex is
[tex]x_{vertex}[/tex] = - [tex]\frac{b}{2a}[/tex]
h(t) = - 16t² + 48t + 4 ← is in standard form
with a = - 16, b = 48 , thus
[tex]x_{vertex}[/tex] = - [tex]\frac{48}{-32}[/tex] = 1.5
Substitute t = 1.5 into h(t) for max. height
h(1.5) = - 16(1.5)² + 48(1.5) + 4
= - 36 + 72 + 4
= 40
Michael fills 1/3 of one trash barrel with 1/9 of the leaves he has raked in his yard.
How many trash barrels must he fill to pick up all of the leaves ?
Answer:
he will need 3 barrels.
Help pleaseeeee ! for a friend
Answer:
35=6X
Step-by-step explanation:
X can be the number of times Mr. O goes to Starbucks
Hey,
35 = 6X
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pls help. please i’m so desperate i’m going to cry. please
Answer:
B
Step-by-step explanation:
Answer:
The ancwer is D
Step-by-step explanation:
Calculate the SPEED of a
sprinter who ran 200 meters
in 20 seconds.
Speed = distance / time
Speed = 200 meters / 20 seconds
Speed = 10 meters / second
1 meter per second = 3.6 km per hour
10 meters per second x 3.6 = 36 km per hour
Answer: 36 kilometers per hour
Step-by-step explanation: Average speed = total distance / total time.
Solve for h. -98 = -7h h =
Answer:
14
Step-by-step explanation:
[tex] - 98 = - 7h \\ \\ - 98 \div - 7 = h \\ \\ 14 = h[/tex]
Is triangle mno similar to triangle pqo explain
Answer:
need more information or a picture please
Step-by-step explanation:
what's (-9n^6) (8n) equal?
Answer:
skp
Step-by-step explanation:
help me plz idk this at all
Step-by-step explanation:
sin theta = opp / hyp
sin theta × hyp = opp
sin60 × 30 = opp
.866 × 30 = opp
25.98° = opp
*Theta is the 0 with a line through it
Question 3 of 50
Jaylen has 28 coins, all dimes and quarters. Their total value is $5.20. Jaylen has 12 dimes and 16 quarters.
True
Or
False
Answer:
True
Step-by-step explanation:
12 x $0.10 = $1.20
16 x $0.25 = $4.00
$1.20 + $4.00 = $5.20
Hope this helped!
what is the answer to this (-¾)(½)(-⅔) = in simplest form please answer ASAP
Answer:
1/4
Step-by-step explanation:
cross both 3s and 2s. 1/4 is left.also -×- =+. so it's +1/4