Question

find inverse function
f(x) = -3x + 9​

Answer 1

Answer:

$f^{-1} (x) = \frac{-x}{3} +3$

Step-by-step explanation:

y = -3x + 9​ ⇌ 3x = 9 - y ⇌ x = -y/3 + 9/3 ⇌ x = -y/3 + 3