Question 989726
Find the inverse first.


y = 4(x+3)- 5
y + 5 = 4(x + 3)
(y + 5)/4 = x + 3
(y + 5)/4 - 3 = x


f^(-1)(x) = (x + 5)/4 - 3


f^(-1)(3) = (3 + 5)/4 - 3 = -1