Question

Find the inverse function of f(x)=\sqrt(3 x+9). f^(-1)(x)=

Answer 1

Procedure for finding inverse of a function.
write the equation with respect to y
switch x and y
solve for y
the new equation is the inverse.

Answer 2

Given f(x)=√(3x+9)
then f^(-1)(x)=?
let y=f(x)
y=√(3x+9)
y²=3x+9
y²-9/3=x
there for x=(y²-9)/3 is the inverse function for f(x)


Learn more about Inverse Secant Function at http://goo.gl/xYXYnM