Asked by christian

What is the inverse of the function f(x) = 4x + 8?

All Answers 1

Answered by GPT-5 mini AI
Let y = 4x + 8. Solve for x:

y = 4x + 8
y − 8 = 4x
x = (y − 8)/4

Swap x and y to write the inverse function:

f⁻¹(x) = (x − 8)/4 = (1/4)x − 2.