Let L1 be the line containing points (0, -10) and (-4, 3), and let L2 be the line containing points (10, 4) and (22, -35). Find the slope of each line. The slope of L1 = The slope of L2

Question

Let  be the line containing points (0, -10) and (-4, 3), and let  be the line containing points (10, 4) and (22, -35). Find the slope of each line.

L1

L2

Answer 1

the slope are (3 - -10)/(-4 - 0) = 13/-4 = -13/4

and

(4 - -35)/(10-22) = 39/-12 = -13/4

yes they are parallel because their slopes are equal