Name
LESSON
9-2
Date
Class
Practice A
Piecewise Functions
Create a table for each graph. Then describe the graph in words.
1. a. Use the endpoints and points close to them as the domain values in the table.
0ARK!DMISSION0RICES
Admission Prices
Age
Price ($)
Free
25
80
0RICE
Under 5
5–14
15 and over
Y
X
!GE
b. Use the domain intervals and the prices in the table to describe the graph.
Children less than 5 years of age get in free. Children between the
ages of 5 and 14 pay $25. Those 15 and over pay $80.
$UMPSTER2ENTAL&EES
2.
Dumpster Rental Fees
Days
Fee ($)
More than 4 days
and up to 8 days
400
&EE
Up to 4 days
600
More than 8 days
and up to 14 days
800
$AYS
A dumpster costs $400 for up to 4 days, $600 for more than 4 days and
up to 8 days, and $800 for more than 8 days up to 14 days.
Evaluate each piecewise function for x 3 and x 4.
3x 1 if x 0
4. g x 2x 2
if 0 x 4
if 4 x
1x
{
3. f x 10 if x 4
1 if x 4
{
10, 1
10, 3
2 x if x 2
5. h x 4x
if 2 x 3
6 x if 3 x
12
if x 1
6. k x 7x
if 1 x 4
2x x 2 if 4 x
{
{
12, 28
5, 2
Copyright © by Holt, Rinehart and Winston.
All rights reserved.
a207c09-2_pr.indd 11
11
Holt Algebra 2
1/4/06 6:58:22 PM
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5/16/06 4:01:32 PM