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2 years ago

Let f(x) = x - 2 and g(x) = x2 - 7x - 9. Find f(g(-1))

1 answer:

Montano1993 [528]2 years ago

4 0

$f(x)=x-2 \\
g(x)=x^2-7x-9 \\ \\
g(-1)=(-1)^2-7 \times (-1)-9 = 1+7-9=-1 \\
f(g(-1))=f(-1)=-1-2=-3 \\ \\
\boxed{f(g(-1))=-3}$

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