A line contains the points (4,-3) and (1, -2). Another line graphed in the same coordinate plane contains the points (-2,0) and (-3,-3).
Based on the slope of these lines, are they parallel, perpendicular or neither?

Question

A line contains the points (4,-3) and (1, -2). Another line graphed in the same coordinate plane contains the points (-2,0) and (-3,-3).
Based on the slope of these lines, are they parallel, perpendicular or neither?

ajprincess · Answer

First find the slopes.
$slope~m=\LARGE\frac{y_2-y_1}{x_2-x_1}$
if the slopes are equal then they are parallel.
jf the product of the slopes is equal to -1 then they are perpendicular.