Question

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

Answer 1

First find g(2).

Then find f of that number.

Answer 2

g(2) = 2^2 - 6(2) - 7 = 4 - 12 - 7 = - 15

Answer 3

Now, you find f(-15).

Answer 4

f(-15) means to find the value of the function f when x = -15.

Answer 5

well?

Answer 6

f(-15)=-15+8

f(-15)=23

Answer 7

You have to watch the sign of a number. 15 + 8 = 23
But -15 + 8 is NOT 23.
Try again.

Answer 8

-7

Answer 9

Yes.