Four point charges are arranged as shown below, each a distance d from the center of the configuration. the value of the constant q is positive. let blue arrows (top or right in each picture) represent electric fields and red arrows (bottom or left) represent forces. for each charge, pick the picture that best represents the directions of both the net force on the charge and the electric field at the charge due to the other three charges.

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

the entire statement is true and correct.  

there's no diagram, nothing is illustrated, and no question is asked.