Parallel & Perpendicular Lines
Parallel or Perpendicular?
Example 6
Determine whether the lines are parallel, perpendicular or neither. Line 1: 7y + 1 = 7x Line 2: x + 5 = y .
Step 1. Rewrite the equations in slope-intercept form and determine the slope of each.
![P_ex6R2 P_ex6R2](https://claregladwinresd.glk12.org/pluginfile.php/2139/mod_book/chapter/4362/Linear/images/P_ex6R2.png)
Step 2. Compare the slopes.
The slopes are the same and the intercepts are different, so the lines are parallel.