Question

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

Select one:
a. -7
b. -3
c. 10
d. 33

Answer 1

do you know how to find \(g(2)\) ?

Answer 2

if not, let me know and i will walk you through it

Answer 3

isn'[t this just:
f(x) = x + 8
F(2) = 2 + 8
f(2) = 10?

Answer 4

no

Answer 5

Oh sorry then :D

Answer 6

no i dont

Answer 7

\[g(x) = x^2 - 6x - 7.\]
\[g(2)=2^2-6\times 2-7\]

Answer 8

i.e. replace \(x\) by \(2\) and see what number you get
let me know what it is

Answer 9

1?

Answer 10

no i don't think so
\[4-12-7\] is not \(1\)

Answer 11

-15

Answer 12

ok good
then
\[f(g(2)=f(-15)\] so your last job is to compute
\[f(-15)=-15+8\]

Answer 13

-7

Answer 14

yes

Answer 15

ok thank you