Question

if f(x)=2x-3 and g(x)=x , what is f(g(2))
A) -2
B) 0
C) 1
D) 4

Answer 1

g(2) can be found by putting x=2 in g(x)
so, g(2)=... ?

Answer 2

@alanis are you there ?

Answer 3

yeah im here

Answer 4

so, can you find g(2) =... ?

Answer 5

no im hazy on how to do this

Answer 6

you just need to replace 'x' by 2 in g(x)=x to get g(2)
its really simple, try it.

Answer 7

so u just times 2 by 2 and get 4

Answer 8

where did 2 times 2 come from ??
g(x) = x
when i put x=2, i get g(2) =2
go this ?

Answer 9

Note, i have just replaced 'x' by '2'

Answer 10

ok so i did all the math and i came up with D) 4 is that the correct answer?

Answer 11

no, its incorrect.
show your math work, i'll correct it.

Answer 12

\[f(g(2)) g(2)=(2)=2 f(g(2))=4=2(4)-3\]

Answer 13

no, thats not correct.
g(2)=2
so, f(g(2)) =f(2) = 2(2)-3 = .... ?

Answer 14

so itll be 1

Answer 15

yes!

Answer 16

thanks

Answer 17

welcome ^_^