Question

PLease solve:
(gºf)(x)=g(f(x)):
3(1/3x+2)-6

Answer 1

I'm going to assume

f(x) = 1/3x + 2
g(x) = 3x - 6

right?

Answer 2

yes

Answer 3

Okay, well distribute the 3 to finish simplifying

Answer 4

then 3/3=0
3*x=3x
3*2=6
so then the equation would look something like this?
3x+6-6=3x?

Answer 5

3/3 = 0? How?

Answer 6

I thought 3/3 = 1

Answer 7

any number over its clone = 1. For example, 1/1=1; 2/2=1; 654/654=1

Answer 8

The expression, if everything you wrote above is correct, should be:

g(f(x)=x

Answer 9

but then how would i graph this?

Answer 10

Plug in values for x and solve for g(f(x)). My guess is you'll get something similar to the graph of y = x

Answer 11

This is a great resource by the way; http://www.khanacademy.org/math/algebra/quadtratics

Answer 12

@jwheele1, I get the feeling that she's trying to figure out how to graph g(f(x))