Question

Classify each pair of lines as parallel, perpendicular, coinciding, or intersecting at a non-right angle:

Line 1 passes through (4, -5) and (0,3)
Line 2 passes through (-4,11) and (-1, 5)

Answer 1

M= y2-y1/x2-x1

Line 1: 3-(-5) / 0-4 = -2
Line 2: 5-11 / (-1)-(-4) = -2

Since the slopes are the same they are parallel