073_084_CC_A_AMC3_C04_662329.indd Page 77
22/09/11
12:53 AM u-s010
/Volumes/110/GO00864/MIDDLE_SCHOOL_MATH/NATIONAL/ANCILLARY...
NAME _____________________________________________ DATE __________________ PERIOD _________
Pretest
1.
10
2. State the domain and range for the relation.
{(3, −2), (4, 1), (−1, −3), (5, 0)}
2.
domain: −1, 3, 4, 5;
range: −3, −2, 0, 1
3. PARKING The table shows the total cost of
parking in a garage. Write an expression that
can be used to find the nth term of the
sequence. Then use the expression to find the
next three terms.
3.
2n + 1; 11, 13, 15
1. Find f(3) if f(x) = 2x + 4.
Number of Hours
Cost ($)
1
3
2
5
3
7
Jarred’s Running
4
9
Copyright © The McGraw-Hill Companies, Inc. Permission is granted to reproduce for classroom use.
Week
Miles
1
2
2
5
3
8
Miles
4. RUNNING The table below shows how many
miles Jarred ran each week. Graph the ordered
pairs.
4
11
11
10
9
8
7
6
5
4
3
2
1
0
y
x
1 2 3 4 5 6 7
Week
4.
5. TEXT MESSAGES Each month, Daneen pays
$8.00 plus $0.10 for each text message she
sends.
a. Write a function to represent the situation.
f(n) = 8.00 + 0.10n,
where n is the num5a. ber of text messages
b. Last month, she sent 46 text messages.
How much did she pay?
5b.
$12.60
Number of
Texts
1
2
3
4
c. Make a table of values for 1, 2, 3, and 4 text
messages sent.
Cost ($)
8.10
8.20
8.30
8.40
5c.
77
Course 3 • Chapter 4 Functions
P rinter P DF