Parallel & Perpendicular Lines
Parallel or Perpendicular?
Example 3
Determine whether the lines are parallel, perpendicular or neither. One lines passes through points (3, 1) and (-2, -2); another line passes through points (5, 5) and (4, -6).
Step 1. Determine the slope of each line.
Step 2. Compare the slopes.
The slopes are not the same or opposite reciprocals of each other,
so the lines are neither parallel nor perpendicular.