Answer:
1. g(x)^-1 = 1/9x - 20/9
2. f(x)^-1 = 25x
Step-by-step explanation:
1. g(x) = 9x + 20
y = 9x + 20
To find the inverse,
First, swap x and y.
x = 9y + 20
y = 1/9x - 20/9 (Then solve in terms of y.)
2. y = x/25
x = y/25
y = 25x
