Algebra 1: Common Core (15th Edition)

Published by Prentice Hall
ISBN 10: 0133281140
ISBN 13: 978-0-13328-114-9

Chapter 5 - Linear Functions - 5-3 Slope-Intercept Form - Practice and Problem-Solving Exercises - Page 314: 62

Answer

A)y=-15x+145 B)See below C)8 days
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Work Step by Step

A)There are 145 pounds of food, to begin with. There are 15 pounds eaten per day so it decreases. The equation would be y=-15x+145. B)To graph go to the first point (0,15) and move down 15 and over 1 to the right. Plot the 2nd point and connect them with a line. C)If y=35 find X: 35=-15x+145 -subtract 145 from both sides- -120=-15x -divide both sides by -15- 8=x In 8 days, there would be 35 pounds of food.
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