Question

Help plz?!?!

Given the following functions f(x) and g(x), solve (f ⋅ g)(3) and select the correct answer below:
f(x) = 4x^2 + 12
g(x) = x − 1

A) 47
B)−47
C)96
D)−96

Answer 1

@stefancipe can u help plz

Answer 2

i'm sorry, but this is the first time seeing f*g, or is that f○g?

Answer 3

its f*g

Answer 4

maybe change x in both f and g with 3 and then multiply them?

Answer 5

i'll try to help you, just wait for me to find formula for multiplication :)

Answer 6

ok

Answer 7

ok, found the solution :)
try changing x in both f and g with, 3, what do you get?

Answer 8

like this?
f(3) = 4*3^2 + 12
g(3) = 3 − 1

Answer 9

so the f = 4*9+12 = 48
and g =2,
then f*g equals?

Answer 10

-96 so D?
(sry slow connection)

Answer 11

wait a sec, how did you get minus?

Answer 12

wait 96 so its c?

Answer 13

am i Right?

Answer 14

yes you are right

Answer 15

well done