I forgot how to do this:

Slope = -9/2

Two points are (-2,9) and (2,-9)

Step-by-step explanation:

The two points the equation should go through are (-2,9) and (2,-9), (Dark Green and Light Blue).

The slope-intercept is calculated using the two points above;

-9 - 9 = -18

2 - (-2) = 4

Slope = -18/4 or -9/2

Hope this helps!

D: 2(x+10)

Step-by-step explanation:

Essentially, you are doing x+10 two times.