line (-6,-5),(-4,-4)
The slope between the two points is y₂ -y₁x₂ -x₁: -4 + 5-4 + 6
⇥ℹ-4 + 5 = 1‖-4 + 6 = 2
⇥ 12
The line passes through the first point with this slope: y = 12·(x + 6) -5
⇥ℹ12·(x + 6) = x + 62‖x + 62 -5 = (x + 6) + 2·(-5)2
⇥ y = (x + 6) + 2·(-5)2
⇥ y = x + 6 -102
▶Line:   y = x -42