How do you determine if the two lines are parallel, perpendicular, or neither if line a passes through points (–1, 4) and (2, 6) and line b passes through points (2, –3) and (8, 1)?
1 Answer
Sep 30, 2014
First we need to find the slopes of the lines to make any determinations.
If the slopes are equal then the lines are parallel .
If the slopes are negative reciprocals then the lines are perpendicular .
If the slopes are neither of the above are true then the lines are neither .
The slopes are equal so the lines are parallel.