Algebra 1

Published by Prentice Hall
ISBN 10: 0133500403
ISBN 13: 978-0-13350-040-0

Chapter 4 - An Introduction to Functions - 4-1 Using Graphs to Relate Two Quantities - Mixed Review - Page 239: 29

Answer

The equation is y=3x. The table and the graph are present on the screenshot below.
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Work Step by Step

The graph was created with cards on the y axis and hours on the x axis because you are making 3 cards per hour which means that on the graph you are rising up by 3 and moving over by 1 as it is cards per hour. The equation is y=3x because at t=0 hours there are 0 cards which means the x and y intercept is (0,0) and the slope is 3 because you are making 3 cards every hour.
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