Answer
y=7.5x-5
Work Step by Step
The Y-intercept is -5 because it is 5 dollars off because of the coupon.
The slope is 7.5 because that is the cost per yard.
m=7.5 and b=-5. So y=7.5x-5.
Graph:
Algebra 1: Common Core (15th Edition)
by Charles, Randall I.
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 312: 34
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