Answer:
A
Step-by-step explanation:
m=(y2-y1)/(x2-x1)
m=(-1-9)/(-3-2)
m=10/-5
m=-2
y=-2x+b
9=-2*-3+b
9=b+6
b=3
y=-2x+3
A
Answer:
C. 10
Step-by-step explanation:
8.9a+15=104
8.9a=104–15 (–15)
8.9a=89 (÷8.9)
a=89/8.9
a=10
The constant rate of change is $1.75 :)
This is because when the x value equals 1 the y value equals 4.75. And when the x value equals 2 the y value equals 6.50, so the rate of change is between the 2 y values which is linear so it has a constant rate of change of $1.75.
You want to try to isolate the x:
First subtract 6 from both sides so you get 2x=28
Then divide both side by 2 so you get x=14 which is your answer :)
ANSWER: x=14
2/3(4x - 5) = 8...divide both sides by 2/3, eliminating the 2/3 on the left
4x - 5 = 8/(2/3)
4x - 5 = 8 * 3/2.. dividing with fractions, flip what u r dividing by, then multiply
4x - 5 = 12....add 5 to both sides, eliminating the 5 on the left
4x = 12 + 5
4x = 17 ...divide both sides by 4
x = 17/4 or 4 1/4