Question

you have a coupon for $50 off your camera purchase of $100 or more at zeke's camera world. write a function relating a camera's purchase price after coupon, y, to the retail price, x. give the domain of this function

Answer 1

Given y is the camera's purchase price after coupon and x is the retail price.

They will be related in the following equation,
y= x-50

The domain ( meaning the values of x), is x more than or equal to 100, since it is given in the question, camera purchase of $100 or more...