Algebra 1

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

Chapter 4 - An Introduction to Functions - Get Ready - Page 231: 7


Let cost of carton represent y and let number of cartons represent x Equation: y=3x Table: X | Y (0 , 0) (1 , 3) (2 , 6) (3 , 9) (4 , 12)

Work Step by Step

We can model the relationship through the equation y=3x because since each carton cost $3, the slope becomes 3 and since no other items are bought, the y-intercept become (0,0), thus forming the equation. The table can be formed by plugging in any value for x and then solving for y. For example: (Plugging in 2 for x) y=3x y=3(2) y=6 This forms the ordered pair (2,6).
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