Question

Given that f(x) = 2x + 1 and g(x) = the quantity of 3x minus 1, divided by 2, solve for g(f(3))

A) 5
B) 7
C) 9
D) 10

Answer 1

Please help @jigglypuff314 @agent0smith @YanaSidlinskiy

Answer 2

I helped you with a similar one yesterday. Try using that example and putting these numbers as I did yesterday

Answer 3

I forgot how you laid it out lol, do you mind giving me the format and I'll plug in the numbers?

Answer 4

Hold on:)

Answer 5

KK tyy :)

Answer 6

Refer to that: http://openstudy.com/users/george.g101#/updates/5762fbc2e4b02b7e8db80aed

Answer 7

Ok so \[g(x)= 3(3)-1 \over 2\]

Answer 8

g(x)=\[g(x)= 5/2\]

Answer 9

Wait no 8/2= g(x)= 4

Answer 10

SOS @agent0smith lol

Answer 11

Keep in mind you're finding g(f(3)); you need the INSIDE function first. Not the outside one.

Answer 12

Sorry I'm really confused math is my weak spot =/

Answer 13

g( f(3) )
^find f(3) first.

Answer 14

f(3)= 2(3)+1? = f(3)= 7

Answer 15

Good now find g( f(3) )

Answer 16

g(3)= 3(3)-1 over 2. = 8/2= g(3)=4?

Answer 17

I'm stuck now :/

Answer 18

You're finding g( f(3) )

What was f(3)?

Answer 19

7

Answer 20

So then replace f(3) with 7.

You aren't finding g(3). You're finding g( f(3) )

Answer 21

Wait I just worked it out the answer is '9' right?

Answer 22

Idk, show your work.

Answer 23

Intelligence, I just summited it it I'll tell you if I was right. Thanks for your help:)

Answer 24

No... show your work.

Answer 25

I don't care if the answer is right or not. I'm saying show your work because if the work is right, the answer will be.

Answer 26

And on a test, teachers don't give full credit for just an answer. Work needs to be shown.