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?
parallel

perpendicular

neither

Answer 1

lines are perpendicular when their slopes are negative reciprocals of one another

Answer 2

-2+3/1-4
1/-3

-3-0/-3+2
-3/-1
3

they are perpendicular