Question

Suppose you have a ​$8-off coupon at a fabric store. You buy fabric that costs ​$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?

Answer 1

`y=7.50x+8`

Explanation:

For the equation, the amount of money is
`y`, and the number of yards is
`x`.

So, the problem says that the persona already have $8, which is constant, it wont' variate, that is, this is the independent term.

Then, it says the the fabric costs $7.50 per yard, and
`x` refer to yards, so this term would be
`7.50x`.

Therefore, the equation to model this problem would be:

`y=7.50x+8`

Answer 2

= 7.5x-8

Explanation:

Total cost = cost per yard * yard of fabric - coupon

total cost = 7.5 x - 8

y = 7.5x-8