Which rules define the function graphed below? 5
4.
(0.3)
3
(3.2)
-3
-1
1 2 3 4 5 6 7
2
-3
y = 2x+3; y=-1/3x + 3
y = 2x, y=-1/3x
y=3x+2; y=3x-1
y=-3x+3; y=x+3

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?