SOLUTION: I need help with the problem f(x)=2x-7 g(x)=(x+2)/2 find f(g(x))

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Question 219381: I need help with the problem
f(x)=2x-7
g(x)=(x+2)/2
find f(g(x))
Answer by rapaljer(4671) About Me  (Show Source):
You can put this solution on YOUR website!
f(g(x)) is not as complicated as it seems. Just substitute the quantity of g(x) in place of the x in the f(x) formula like this:

f%28g%28x%29%29+=+f%28%28x%2B2%29%2F2%29
f%28g%28x%29%29+=+2%28%28x%2B2%29%2F2%29+-+7
f%28g%28x%29%29+=+x%2B2+-+7
f%28g%28x%29%29=+x-5

R^2

Dr. Robert J. Rapalje, Retired