What happens to the force between two charges if one of the charges are doubled?
it decreased by a quarter
it quadruples
it doubles
it cuts in half

The new force between the charges becomes double of the initial force.

Explanation:

The force acting between charge particles is given by :

k is electrostatic constant

r is distance between charges

If one of the charges are doubled, then, q₁ = 2q₁

The new force becomes,

So, the new force between the charges becomes double of the initial force.

answer: a) y=-8x+5

a) m= -8

b) m= -2

c) m= 7

d) m= 6