Online College Courses for Credit

Slopes of parallel and perpendicular lines

Slopes of parallel and perpendicular lines

Author: Marcia Cyr

By the end of this lesson, students will be able to use coordinates to determine if line segments are parallel, perpendicular or neither. students will use this to classify quadrilateral based on whether sides are parallel/ perpendicular.

Students review calculation of slope and then use coordinate geometry to classify quadrilaterals based on parallel/perpendicular sides and diagonal relationships.

See More

Try Our College Algebra Course. For FREE.

Sophia’s self-paced online courses are a great way to save time and money as you earn credits eligible for transfer to many different colleges and universities.*

Begin Free Trial
No credit card required

29 Sophia partners guarantee credit transfer.

312 Institutions have accepted or given pre-approval for credit transfer.

* The American Council on Education's College Credit Recommendation Service (ACE Credit®) has evaluated and recommended college credit for 27 of Sophia’s online courses. Many different colleges and universities consider ACE CREDIT recommendations in determining the applicability to their course and degree programs.


Guided notes


Slopes of parallel/perpendicular lines video