How does height affects the potential energy of a body?

See below

Explanation:

Potential Energy = mgh

Where m = mass, g = acceleration due to gravity and h = height

So, Height is directly proportional to potential energy. Such that

If, Height is increased, Potential Energy is increased and vice versa.

because it says use -2,0,and 2 for x, we can plug those numbers into the equation. y/4=3/4(-2)+2   y/4= -1 1/2 +2 now to get x by itself, we can multiply each side by 4. y=-6+8 which equals y=2 when x=-2. now you can do the same thing with 0 and 2 as x. you get y=8 when x=0 and y=14 when x=2.

x   |   y

-2 |   2

0   |   8

2   |   14