Question

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

Answer 1

First find f(g(x))

Answer 2

Do you know how to find f(g(x))?

Answer 3

no

Answer 4

when i set it up its weird

Answer 5

can you show me please

Answer 6

Yeah sure,

\[f(g(x)) = (x^2-6x-7)+8\]

Answer 7

Just sub in 2 now where ever the x is and you'll have f(g(2)).

Answer 8

got it its -7

Answer 9

Yeah that's right.

Answer 10

thank you

Answer 11

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

first find f(g(x)) how you do this is by putting g(x) value into f(x)

as in.. f(g(x)) = x + 8 where x -> x^2 - 6x -7

= x^2 - 6x - 7 + 8

now replace the value of x by 2(because f(g(2))

4 - 12 - 7 + 8 = -7 :)

Oh look.. I'm too late to answer.. oh well.