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

Multiple Choice

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.
$L _ { 1 } : ( 4,11 )$ and $( 0,7 )$
$L _ { 2 } : ( - 6 , - 4 )$ and $( 7,9 )$

A) Parallel
B) Perpendicular
C) Neither