Instructional Video3:10
Curated OER

How Do You Graph a System of Equations With No Solution?

For Teachers 8th - 11th
Two equations. What's the solution to this system? How can you solve it? Can you write the two equations in slope-intercept form? Yes, you can. Now graph each equation. Look, the lines are parallel. What does that mean? That means there...
Instructional Video5:29
Khan Academy

Consistent and Inconsistent Systems, Algebra II

For Students 9th - 11th
First, Sal defines consistent and inconsistent equations. He then evaluates a system of linear equations to determine if they are consistent or not. This resource isobviousr and would be a wonderful video to show before a test or at an...
Instructional Video
Sophia Learning

Sophia: Identifying Parallel, Intersecting, and Identical Lines

For Students 9th - 10th Standards
This video lesson demonstrates how to determine if linear equations are parallel, identical, or intersecting. Students can check their understanding with an assessment.
Instructional Video
Study Pug

Study Pug: Determining Number of Solutions to Linear Equations

For Students 9th - 10th Standards
Depending on whether and how the linear equations in a system touch each other, there will be a different number of solutions to the system. There can be one solution, no solution, and even infinite solution. Watch this video for...