SOLUTION: Please help me solve this :-) Thank you Find the inverse. f(x)=sqrt(x+8) Choices are a: f^–1(x) = x2 + 8, x ≥ 8 b:f^–1(x) = x2 + 8, x ≥ 0

Algebra ->  Finance -> SOLUTION: Please help me solve this :-) Thank you Find the inverse. f(x)=sqrt(x+8) Choices are a: f^–1(x) = x2 + 8, x ≥ 8 b:f^–1(x) = x2 + 8, x ≥ 0      Log On


   



Question 1080124: Please help me solve this :-) Thank you
Find the inverse.
f(x)=sqrt(x+8)
Choices are
a: f^–1(x) = x2 + 8, x ≥ 8
b:f^–1(x) = x2 + 8, x ≥ 0

Answer by josgarithmetic(39630) About Me  (Show Source):
You can put this solution on YOUR website!
Domain of f, x%3E=-8
Range of f, y%3E=0

sqrt%28f%5E-1%28x%29%2B8%29=x

f%5E-1%28x%29%2B8=x%5E2
f%5E-1%28x%29=x%5E2-8, and x%3E=0