Question

If f(x) = 4x - 12, and g(x) = x^2 + 12, what is f(g(x))?

Work Done

4(x^2 + 12) - 12

4x^2 + 48 - 12

4x^2 + 36

Is this coorect? I substituted g(x) in the f(x) equation when there was an x.

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- May 20th 2008, 03:10 PMAlanf(x) g(x) help
Question

If f(x) = 4x - 12, and g(x) = x^2 + 12, what is f(g(x))?

Work Done

4(x^2 + 12) - 12

4x^2 + 48 - 12

4x^2 + 36

Is this coorect? I substituted g(x) in the f(x) equation when there was an x. - May 20th 2008, 03:15 PMbobak
- May 20th 2008, 03:35 PMAlan
Thanks, I'll probably have some more questions soon. I am reviewing for an exam.