Question

Let f(x) = x + 8 and g(x) = x2 - 6x - 7. Find f(g(2)).

Answer 1

Here you are dealing with the composition of 2 functions. You are evaluating function f(x) when the input to f(x) is g(x)=x^2-6x-7. Please note: write that "x squared" as x^2.

One way of doing this would be to evaluate function f(g) at x=2. Show your work, please.

If you get the correct result to that, then finish this problem by substituting the value of g)2_ for x in f(x).

Answer 2

best way to do this is first solve g(2). You will get -15. Now solve f(-15). You will get -7.

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