mathleaks.com mathleaks.com Start chapters home Start History history History expand_more
{{ item.displayTitle }}
navigate_next
No history yet!
Progress & Statistics equalizer Progress expand_more
Student
navigate_next
Teacher
navigate_next
Expand menu menu_open Minimize
{{ filterOption.label }}
{{ item.displayTitle }}
{{ item.subject.displayTitle }}
arrow_forward
No results
{{ searchError }}
search
menu_open home
{{ courseTrack.displayTitle }}
{{ statistics.percent }}% Sign in to view progress
{{ printedBook.courseTrack.name }} {{ printedBook.name }}
search Use offline Tools apps
Login account_circle menu_open

Writing Equations of Perpendicular Lines

Writing Equations of Perpendicular Lines 1.3 - Solution

arrow_back Return to Writing Equations of Perpendicular Lines

To tell if two lines are perpendicular, we check if the product of their slopes are Thus, let's calculate the slope of the lines with the slope formula.

Line Points Slope
&
&
&

Now we have to multiply the slopes to see if any pair of them equals

Lines Slopes Product
& &
& &
& &

Neither product equals This means that none of the lines are perpendicular.