In verse proportion:-
p = k / (q + 4)^2 where k is a constant
When p = 2, q = 2 so we can find k as follows:-
2 = k / (2 + 4)^2
k = 2 * 6^2 = 72
So we have the equation relating p and q :-
p = 72 / (q + 4)^2
When q = -2,
p = 72 / (-2 + 4)^2
4p = 72
p = 72/4 = 18 (answer)
