Question

More math questions if you would

Answer 1

`\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

Answer 2

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.