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4-4 Solve It!
You are paying to print pictures from
your digital camera at the photo shop.
You choose one size for all your prints.
What is one possible graph of the
relationship between the total cost and
the number of pictures you print?
You connect the
dots in certain
real-world graphs.
PRINTS
PRICE
SIZE
8 X 10
6X8
5X7
4X6
$3 .99
$1 .99
$ .99
$ .49
4-4 Lesson Quiz
1
1. What is the graph of the function rule y 5 3x 2 1?
2. Do you UNDERSTAND? Kenny buys mixed nuts at a corner
market for $4.50 per pound. The cost is a function of the
number of pounds of nuts bought. What is the graph of the
function? Is the function continuous or discrete?
Answers
Solve It!
Lesson Quiz
1.
2. continuous
6
y
50
4
4
2
2
6 4
0
0 1 2 3 4
2
O
2
Number of Prints
4
y
40
x
2
4
6
Cost ($)
0253_hsm11a1se_0404.indd 253
Total Cost
Answers may vary. Sample:
2/5/09 12:18:46 PM
30
20
10
0
0
x
2
4
6
Prentice Hall Algebra 1 • Solve It/Lesson Quiz on Transparencies
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31
6
8
Pounds
10
12