Verified Answer :

Gradient, m=\(\frac{change in y}{change in x}\)
m=\(\frac{8-2}{-5--3}\)
m=\(\frac{6}{-2}\)
m=-3
Equation;
y=mx+c
y=-3x+c
Using point (-3,2) to replace for x and y;
2=-3(-3)+c
2=9+c
c=-7
y=-3x-7