Answer:
1.y = 4/5x + 6/5 2. y = -5x + 16 3.y = 7x - 37
Step-by-step explanation:
1. y = 4/5x + b
2 = 4/5(1) + b
2 = 4/5 + b
6/5 = b
y = 4/5x + 6/5
2. y = -5x + b
1 = -5(3) + b
1 = -15 + b
16 = b
y = -5x + 16
3. y = 7x + b
-2 = 7(5) + b
-2 = 35 + b
-37 = b
y = 7x - 37