Question

find the inverse of f(x)=2x^3+4

Answer 1

First, let f(x) =y

Answer 2

y=2x^3+4

Answer 3

Then, solve for x

Answer 4

x^3=(y-4)/2

Answer 5

do you divide by 2?

Answer 6

x=(cubic root) of ((y-4)/2)

Answer 7

now exchange the y and the x
y=(cubic root) of ((x-4)/2)

so the inverse is: (cubic root )of ((x-4)/2)

Answer 8

yes I devided by 2 up there to solve for x, and then took the cube root of both sides

Answer 9

oh okay, just wanted to make sure

Answer 10

okay well thank you!