Two points are given from each of two lines $L _ { 1 }$ and $L _ { 2 }$. Without graphing the points, determine if the lines are perpendicular, parallel, or neither.
$L _ { 1 } : ( 4,3 )$ and $( - 6,13 )$
$L _ { 2 } : ( 2,0 )$ and $( 3 , - 2 )$
A) Perpendicular
B) Parallel
C) Neither

Question

Quizplus · Accepted Answer

The slopes of the two lines are not equal and not negative reciprocals of each other, so the lines are neither perpendicular nor parallel.

Two Points Are Given from Each of Two Lines L1L _ { 1 }L1​

Two Points Are Given from Each of Two Lines $L _ { 1 }$