Select all of the following points that lie on the graph of f(x) = 7 - 3x.
(-2,1)
(-1, 10)
(2,1)
(1,5)
(0,7)

Barney & noblet customers can choose to purchase a membership for $25 per year members receive 10% off all store purchases 1. how much would a member pay per year if he bought $50 worth of items each year? 2. write a slope-intercept equation that expresses how much a member pays per year using x to represent his purchases per year 3. how much would a member have to spend per year to pay off his membership fee?