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: 5


Let Bob represent y and let Bob's dog represent x Equation: y=x+9 Table: X | Y (0 , 9) (1 , 10) (2 , 11) (3 , 12) (4 , 13)

Work Step by Step

We can model the relationship through the equation y=x+9 because since Bob is 9 years older than his dog and they both grow 1 year old each year, the slope becomes 1 and the y-intercept become (0,9), 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 3 for x) y=x+9 y=(3)+9 y=12 This forms the ordered pair (3,12).
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