SOLUTION: Suppose you have a $5 off coupon at a fabric store. You buy fabric that cost $7.50 per yard. Write an equation that models the total amount of money "Y" you pay if you buy "X" yard

Question 1042704: Suppose you have a $5 off coupon at a fabric store. You buy fabric that cost $7.50 per yard. Write an equation that models the total amount of money "Y" you pay if you buy "X" yards of fabric. What is the graph of the equation?
Found 2 solutions by josmiceli, ikleyn:
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!

Here's the plot:

Answer by ikleyn(52908) (Show Source): You can put this solution on YOUR website!
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How to explain the negative part of the function?

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