Question

If f(x) = x − 2 and g(x) = −2x − 1, find (f • g)(9)

19

−18

0

−19

Answer 1

it's the same thing as the other one, work from the inside out

Answer 2

here, the inside function is g(x)

Answer 3

what do i do now

Answer 4

so plug in 9 to g(x)

Answer 5

ok

Answer 6

ok, and then whatever you got, plug it in to f(x)

Answer 7

-19?

Answer 8

quick question first...is that f(g(x)) or f times g?

Answer 9

f times g

Answer 10

oh, sorry i thought it was composite

Answer 11

do u knw how to do it?

Answer 12

have you tried it yet?

Answer 13

yea, but i cant do it, thats why i came here

Answer 14

see, if we plug in 9 right away before we multiply, the answer wouldn't be on the list you have...so i guess what we could do, is multiply the two functions and then pug in...

Answer 15

if it is a multiplication problem

Answer 16

then?

Answer 17

-19?

Answer 18

if that's what you got when you did it, then yes...sorry, I don't have writing toold with me right now

Answer 19

tools*