Use the graph to write a linear function that relates y to x. 8
6
4
-8-6-4-2 1 2 4 6 8 x
8
y=

i believe it is c.y = 9x

rise over run. 9 units up over 1 unit right or 9/1

b. y = 4x - 2

step-by-step explanation:

to find a parallel equation to an equation, make sure both equations have the same slope but different y-intercepts.

y = 4x + 1

4 = slope

1 = y-intercept

y = 4x - 2

4 = slope

-2 = y-intercept

they both have the same slope but different y-intercepts, so, b. is the correct answer.

and to check your work, you can graph both equations. : )

one set of data has more variation than the other. hope this !