SOLUTION: If f(x) = 2x + 1 and g(x) = x/2 – 1/2 , then f(g(x)) =? the g(x) is x-1 divided by 2

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Question 440171: If f(x) = 2x + 1 and g(x) = x/2 – 1/2 , then f(g(x)) =?
the g(x) is x-1 divided by 2
Found 2 solutions by ewatrrr, nerdybill:
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
 

Hi

    g(x) = highlight%28%28x-1%29%2F2%29  

and f(x) = 2x + 1 

 f(g(x)) = 2(highlight%28%28x-1%29%2F2%29) + 1   |substituting g(x) for x

 f(g(x)) = x - 1 + 1

 f(g(x)) = x

Answer by nerdybill(7384) About Me  (Show Source):
You can put this solution on YOUR website!
If f(x) = 2x + 1 and g(x) = x/2 – 1/2 , then f(g(x)) =?
.
f(x) = 2x + 1
f(g(x)) = 2(x/2 – 1/2) + 1
f(g(x)) = (x – 1) + 1
f(g(x)) = x