6. Y = -7/3x + 17
Slope: 10-3/3-6 = -7/3
y = mx + b
3 = (-7/3)6 + b
3 = -14 + b
17 = b
7. Y = 3/5x - 7
Slope: 2-(-4)/15-5 = 6/10 = 3/5
y = mx + b
-4 = (3/5)5 + b
-4 = 3 + b
-7 = b
8. Y = 3x - 15
Slope: (-9)-(-3)/2-4 = -6/-2 = 3
y = mx + b
-3 = 3(4) + b
-3 = 12 + b
-15 = b
