Question

If f(x) = x − 4 and g(x) = 1 over 2x − 2, find f[g(−6)].

9

3

−9

−3

Answer 1

First find g(-6).
Then input that number into f(x)

Answer 2

is it -9

Answer 3

\( g(-6) = \dfrac{1}{2(-6) - 2} \)
\( g(-6) = \dfrac{1}{-14} \)
\(g(-6) \ -\dfrac{1}{14} \)

Answer 4

oh 3

Answer 5

\( f(- \dfrac{1}{14} = -\dfrac{1}{14} - 4 \)

Answer 6

i got 3.92 from 1/14-4

Answer 7

\( f(- \dfrac{1}{14}) = -\dfrac{1}{14} - 4 \)

\( f(- \dfrac{1}{14}) = -\dfrac{1}{14} - \dfrac{56}{14} \)

\( f(- \dfrac{1}{14}) = - \dfrac{57}{14} \)

Answer 8

Notice it's -(1/14) - 4, not 1/14 - 4.
The answer is a negative number.

Answer 9

-9 of course

Answer 10

I don't understand it. How did you get -9?

Answer 11

Oh, I get it.