#1
(-2,0)(0,1)
slope = (1-0)/(0+2) = 1/2
passing point (3,5)
y = mx + b
5 = 1/2(3) + b
5 = 3/2 + b
5 - 3/2 = b
7/2 = b or b = 7/2
equation
y = 1/2x + 7/2
