Question

y = ^3 square root 7x -9

help..i'm stumped :(

Answer 1

What is it exactly that you want?

Answer 2

do you mean the cube of square root of (7x-9)?
y = (7x-8)^(3/2)

Answer 3

I think he means \(y=\sqrt[3]{7x-9}.\)

Answer 4

and as anwar said what do u want to do qith it?

Answer 5

AnwarA has the correct equation. The question is what is the inverse of this equation. f^-1 = ??

Answer 6

cube both sides:
y^3 = 7x - 9
7x = y^3 + 9
x = (y^3 -9) / 7

replace y by x:

f^-1 = (x^3 - 9) / 7