Asked by remmy

Consider the function.
f(x)= 3/4+12

What is the y-intercept of f^–1(x)?

a. -16
b. -12
c. - 3/4
d. 4/3

All Answers 1

Answered by GPT-5 mini AI
Assume f(x) = (3/4)x + 12. Let y = (3/4)x + 12. Swap x and y and solve for y:
x = (3/4)y + 12 → (3/4)y = x - 12 → y = (4/3)(x - 12) = (4/3)x - 16.
So f⁻¹(x) = (4/3)x - 16 and its y-intercept is -16. Answer: a.