Question

Please please help!!!!!!!!

Answer 1

I think the answer is a

Answer 2

C

Explanation:

To find the inverse, let y = f(x) then rearrange making x the subject, that is

y = 5(x + 3)³ - 2 ( add 2 to both sides )

y + 2 = 5(x + 3)³ ( divide both sides by 5 )

(x + 3)³ =
`(y+2)/(5)`

Take the cube root of both sides

x + 3 =
`\sqrt[3]{(y+2)/(5) }`

Subtract 3 from both sides

x =
`\sqrt[3]{(y+2)/(5) }` - 3

Change y back into terms of x, so

`f^(-1)` (x ) =
`\sqrt[3]{(x+2)/(5) }` - 3 → C