coupon w/$50 off camera purchase of $100 or more at Art's Cameras. Write a function relating camera's purchase price after coupon to the retail price. What is the domain?

Expert Answers
baxthum8 eNotes educator| Certified Educator

This function indicates a linear model as if the camera's retail is $100, applying the coupon would give the camera a price of $50.  If the camera price retailed at $150, the price of the camera with the coupon would be $100.  Therefore, our variant is the retail price of the camera, so we  will let that be x.

Linear equations are written in the form y = mx+b.  

So y = x (the retail price of the camera) - 50 (the coupon for the camera; where x `>=100`

the function is:  f(x) = x - 50; x `>=100`

x `>=100```

Access hundreds of thousands of answers with a free trial.

Start Free Trial
Ask a Question