what are the three particles of an atom?
a. neutron, electron, and ion
b. electron, proton, and isotope
c. proton, neutron, and electron
d. proton, ion, and valencium

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

electric field is a function of 1/r^2

yes, the force per unit charge for a point charge is inverse square law.