Determine whether the lines through each pair of points are parallel.
-(10, 2) and (14, 18); (-7, 10) and (-5, 18)
A) parallel
B) not parallel

Question

Quizplus · Accepted Answer

The slope between the first pair of points (10, 2) and (14, 18) is (18-2)/(14-10) = 16/4 = 4. The slope between the second pair of points (-7, 10) and (-5, 18) is (18-10)/(-5+7) = 8/2 = 4. Since both pairs of points have the same slope, the lines through them are parallel.

Determine Whether the Lines Through Each Pair of Points Are