SOLUTION: Given the function f(x)=4x-6 and g(x)=3x; find f[g(-3)]

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Question 910614: Given the function f(x)=4x-6 and g(x)=3x; find f[g(-3)]
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
Given the function f(x)=4x-6 and g(x)=3x; find f[g(-3)]
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g%28x%29=3x

g%28-3%29=3%28-3%29 Plug in x = -3

g%28-3%29=-9

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f%28x%29=4x-6

f%28g%28-3%29%29=4%28g%28-3%29%29-6 Replace every x with g(-3)

f%28g%28-3%29%29=4%28-9%29-6 Replace g(-3) on the right side with -9

f%28g%28-3%29%29=-36-6

f%28g%28-3%29%29=-42