Curated OER
How Do You Solve a System of Equations Using the Elimination by Addition Method?
How can a value of x and y satisfy a solution to two equations? It doesn't seem possible. Given a system of linear equation, find a solution that satisfies both equations. It can be done. In this video, the instructor demonstrates how to...
Curated OER
How Do You Graph the Intersection of Two Inequalities?
Intersection. Isn't that where paths cross? And so it is in math also. Observe the teacher as she draws a number line and plots two inequalities on it. She then explains how to get the intersection of these two lines. Then she draws...
Curated OER
What's a Venn Diagram, and How Do You Find the Intersection and Union of a Set?
A straightforward illustration of a Venn diagram. Intersection is what they sets have in common, and the union is all the elements of the sets. The diagram certainly helps you see what this means.
Virtual Nerd
Virtual Nerd: Solve a System of Equations Using Elimination by Multiplication
There are many different ways to solve a system of linear equations. In this tutorial, you'll see how to solve such a system by combining the equations together in a way so that one of the variables is eliminated. Then, see how to find...
Virtual Nerd
Virtual Nerd: What Are Intersecting Lines?
Two lines that cut across one another are called intersecting lines. Learn about them by watching this tutorial. [7:19]
Virtual Nerd
Virtual Nerd: What Are Parallel Lines?
Lines that are parallel have a very special quality. This tutorial takes a look at parallel lines and how they are different from other types of lines. [4:06]
Virtual Nerd
Virtual Nerd: What Are Vertical Angles?
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]
Virtual Nerd
Virtual Nerd: How Do You Solve a System of Equations by Graphing?
Check out this tutorial to see how to solve a system of linear equations by graphing both lines and finding their intersection. [4:01]
Sophia Learning
Sophia: Graphing an "And" Compound Inequality Solution Set
The mathematics resource investigates how to graph an "and" compound inequality. A detailed example is included in the video lesson.
Khan Academy
Khan Academy: Mathematics of Pinhole Cameras
In this video [2:43] we'll find the intersection point of a light ray and our image plane.
Sophia Learning
Sophia: Finding Intersections: Lesson 1
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."
Sophia Learning
Sophia: Finding the Intersection of Multiple Sets: Lesson 2
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."
Sophia Learning
Sophia: Finding the Intersection of Multiple Sets: Lesson 4
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."
Sophia Learning
Sophia: Finding the Intersection of Multiple Sets: Lesson 8
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."
Sophia Learning
Sophia: Finding the Intersection of Multiple Sets: Lesson 9
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."
Sophia Learning
Sophia: Finding the Intersection of Multiple Sets: Lesson 1
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."
Sophia Learning
Sophia: Finding the Intersection of Sets: Lesson 2
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."
Sophia Learning
Sophia: Finding the Intersection of Sets: Lesson 3
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."
Sophia Learning
Sophia: Finding the Intersection of Sets: Lesson 4
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."
Sophia Learning
Sophia: Finding the Intersection of Sets: Lesson 5
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."
Sophia Learning
Sophia: Finding the Intersection of Sets: Lesson 6
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."
Sophia Learning
Sophia: Finding the Intersection of Sets: Lesson 1
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."
Sophia Learning
Sophia: Relationships Between Dimensions: Lesson 2
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."
Sophia Learning
Sophia: Relationships Between Dimensions: Lesson 5
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."