SOLUTION: find the composition of functions (fog)(x) for: g(x) = (2x) (1/2), f(x) = x2 + 1 I could really use some help.

Algebra ->  Functions -> SOLUTION: find the composition of functions (fog)(x) for: g(x) = (2x) (1/2), f(x) = x2 + 1 I could really use some help.      Log On


   

Question 357866: find the composition of functions (fog)(x) for:
g(x) = (2x) (1/2), f(x) = x2 + 1
I could really use some help.
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
Use the caret (^) to denote exponents.
.
.
.
g%28x%29+=+%282x%29%5E%281%2F2%29=sqrt%282x%29
f%28x%29+=+x%5E2+%2B+1
.
.
f%28g%29=g%5E2%2B1
f%28g%29=%28sqrt%282x%29%29%5E2+%2B1
highlight%28f%28g%29=2x%2B1%29