SOLUTION: Given f(x) = 7x − 9 and g(x) = 8x − 1, evaluate the composite function. f[g(x)]

Algebra ->  Functions -> SOLUTION: Given f(x) = 7x − 9 and g(x) = 8x − 1, evaluate the composite function. f[g(x)]       Log On


   

Question 1005511: Given
f(x) = 7x − 9
and
g(x) = 8x − 1,
evaluate the composite function.
f[g(x)]
Answer by richard1234(7193) About Me  (Show Source):
You can put this solution on YOUR website!
Substitute g(x) with 8x-1.

f(g(x)) = f(8x-1) = 7(8x-1)-9 = 56x - 16.