Vertical angles are always congruent to one another. Take a look at this tutorial to learn about and see how to identify vertical angles. [4:07]

Check out this tutorial to see how to solve a system of linear equations by graphing both lines and finding their intersection. [4:01]

The mathematics resource investigates how to graph an "and" compound inequality. A detailed example is included in the video lesson.

In this video [2:43] we'll find the intersection point of a light ray and our image plane.

This lesson demonstrates graphing two lines on a coordinate plane and determining the point where two lines intersect. It is 1 of 5 in the series titled "Finding Intersections."

This lesson demonstrates how to find the intersection of more than two sets. It is 2 of 11 in the series titled "Finding the Intersection of Multiple Sets."

This lesson demonstrates how to find the intersection of more than two sets. It is 4 of 11 in the series titled "Finding the Intersection of Multiple Sets."

This lesson demonstrates how to find the intersection of more than two sets. It is 8 of 11 in the series titled "Finding the Intersection of Multiple Sets."

This lesson demonstrates how to find the intersection of more than two sets. It is 9 of 11 in the series titled "Finding the Intersection of Multiple Sets."

This lesson demonstrates how to find the intersection of more than two sets. It is 1 of 11 in the series titled "Finding the Intersection of Multiple Sets."

This lesson demonstrates how to determine at which elements two sets intersect. It is 2 of 12 in the series titled "Finding the Intersection of Sets."

This lesson demonstrates how to determine at which elements two sets intersect. It is 3 of 12 in the series titled "Finding the Intersection of Sets."

This lesson demonstrates how to determine at which elements two sets intersect. It is 4 of 12 in the series titled "Finding the Intersection of Sets."

This lesson demonstrates how to determine at which elements two sets intersect. It is 5 of 12 in the series titled "Finding the Intersection of Sets."

This lesson demonstrates how to determine at which elements two sets intersect. It is 6 of 12 in the series titled "Finding the Intersection of Sets."

This lesson demonstrates how to determine at which elements two sets intersect. It is 1 of 12 in the series titled "Finding the Intersection of Sets."

This lesson takes you through how objects in upper dimensions can be depicted in lower dimensions and vice versa. It is 2 of 6 in the series titled "Relationships Between Dimensions."

This lesson takes you through how objects in upper dimensions can be depicted in lower dimensions and vice versa. It is 5 of 6 in the series titled "Relationships Between Dimensions."

This lesson will explain that where two distinct, nonparallel lines intersect, four angles are created that sum to 360 degrees. It is 3 of 7 in the series titled "Two Intersecting Lines."

This lesson will explain that where two distinct, nonparallel lines intersect, four angles are created that sum to 360 degrees. It is 6 of 7 in the series titled "Two Intersecting Lines."

This lesson demonstrates how to determine at which elements two sets intersect. It is 11 of 12 in the series titled "Finding the Intersection of Sets."

This lesson takes you through how objects in upper dimensions can be depicted in lower dimensions and vice versa. It is 3 of 6 in the series titled "Relationships Between Dimensions."

This lesson will explain that where two distinct, nonparallel lines intersect, four angles are created that sum to 360 degrees. It is 4 of 7 in the series titled "Two Intersecting Lines."