More math questions if you would

Question

2 Answers

Pedro Azevedo · Answer 1 · 2021-02-05T05:00:39+0000

Answer:

$\large \boxed{\mathrm{Option \ A}}$

Explanation:

f(x) = 7x+8

Write f(x) as y.

y = 7x + 8

Switch variables.

x = 7y + 8

Solve for y to find the inverse.

x - 8 = 7y

(x-8)/(7) = y

Keith Harris · Answer 2 · 2021-02-11T00:20:14+0000

Answer:

A.

Explanation:

So we are given the function:

f(x)=7x+8

To find the inverse of the function, we simply need to flip f(x) and x and then solve for f(x). Thus:

$x=7f^(-1)(x)+8\\x-8=7f^(-1)(x)\\f^(-1)(x)=(x-8)/(7)$

So the answer is A.