# 1. Composition 2. See Attached Picture for 2nd Problem

• Jan 9th 2007, 03:17 PM
qbkr21
1. Composition 2. See Attached Picture for 2nd Problem
1. Let $f(x)=5x+3$ and $g(x)=3x^2+3x$

next problem...

2. Using the attached picture find:

A. f(g(-3)):?

B. f(g(0)):?

Thanks
• Jan 9th 2007, 03:19 PM
qbkr21
Picture is Attached Now...

1. Let $f(x)=5x+3$ and $g(x)=3x^2+3x$

next problem...

2. Using the attached picture find:

A. f(g(-3)):?

B. f(g(0)):?

Thanks
• Jan 9th 2007, 07:18 PM
topsquark
Quote:

Originally Posted by qbkr21
Picture is Attached Now...

1. Let $f(x)=5x+3$ and $g(x)=3x^2+3x$

What is the question here?

Quote:

Originally Posted by qbkr21
2. Using the attached picture find:

A. f(g(-3)):?

B. f(g(0)):?

These are composite functions and can be done quite simply, as long as you go step by step.

A. f(g(-3)):
First what is g(-3)? According to the graph g(-3) = 3.
So f(g(-3)) = f(3) = 0

B. f(g(0)):
Again, what is g(0)? According to the graph g(0) = 1.
So f(g(0)) = f(1) = -1.

-Dan