Problem: what is the equation of the line with a slope
of 5/6 and the point (9,-8)
use y-y1= m(x-x1) to get equation y=mx+b
y - y1 = m(x - x1)
y - (-8) = 5/6 (x - 9)
y + 8 = 5/6 x - (5/6)9
y + 8 = 5/6 x - (5/2)3
y + 8 = 5/6 x - 15/2
y + 8 = 5/6 x - 7.5
y = 5/6 x - 7.5 - 8
y = 5/6 x - 15.5