The function that represents how much you would pay is:
p(x) = (x - $5)*0.9
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How to find the function?</h3>
Let's say that the cost of the repair is x.
First, we apply the coupon, so we discount $5 for the cost.
x - $5.
Then we apply another discount of the 10%, this is written as:
(x - $5)*(1 - 10%/100%)
(x - $5)*(1 - 0.1)
(x - $5)*0.9
Then the function that represents how much you would pay is:
p(x) = (x - $5)*0.9
If you want to learn more about functions:
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Answer: You need 27 more dollars.
Step-by-step explanation: This is because for this problem, you need to subtract 65 from 38 to get 27
Answer:
y=2/5x-1
Try using desmos graphing calculator, it works for me so maybe it will help you. Just put each equation in each one and find that one that is similar.