Answer:
k = 1/2
Step-by-step explanation:
g(x) = 3 - kx g^-1(4) = -2
y = 3 - kx
x = 3 - ky
x - 3 = -ky
(x-3) / (-k) = y
(x-3) / (-k) = (g^-1(x))
4-3 / (-k) = -2
1 / (-k) = -2
1/k = 2
1 = 2k
1/2 = k
