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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 Copyright © by Pearson Education, Inc., or its affiliates. All Rights Reserved. 31 6 8 Pounds 10 12