Curated OER
How Do You Rotate a Figure 270 Degrees Clockwise Around the Origin?
Pupils who view this tutorial will gain a better understanding of how to rotate a figure around the origin of a coordinate plane. This video covers how to rotate clockwise and counterclockwise to achieve the same purpose. Show this video...
Curated OER
How Do You Rotate a Figure 180 Degrees Around the Origin?
Demonstrate how to rotate a figure around the origin of a coordinate plane. The instructor in this video tutorial explains the concept deliberately, showing how to complete the rotation as she presents the information. After she finishes...
Virtual Nerd
How Was the Distance Formula Derived?
Are you working on the distance formula? Derive the distance formula and help your learners by showing them the logic behind the distance formula. This practical video should help conceptual understanding and is appropriate for in-class...
Curated OER
How Do You Find the Solution Set for a Relation If You Know the Domain?
Use a table to find the solution set for an equation. Watch an instructor as she directs how to create ordered pairs using a given domain and check your answers using one of these ordered pairs. A practical video for anyone, student or...
Curated OER
What's Slope-Intercept Form of a Linear Equation?
A clear introduction to slope-intercept form, this would be helpful for learners who are struggling with this concept. You might also provide this instructional video for class members to use as they work on homework or class work. A...
Curated OER
What's a Boundary?
Are you graphing an inequality? What's that dashed line called? It's called a boundary line and it is the line that separates the coordinate plane into two separate half planes.
Curated OER
How Do You Graph Ordered Pairs in Each Quadrant?
Draw a graph, label your units, make a table of your given coordinates. Now plot your points, label each point as you graph it. Next identify the quadrant that each point is in and add that to your table.
Curated OER
How Do You Make a Figure Larger Using a Dilation?
A dilation increases or decreases the size of a figure. In this lesson the teacher shows you how to use a scale factor of three to dilate the given figure. She identifies the ordered pairs, multiplies them by three, plots the new...
Curated OER
How Do You Graph Points in the Coordinate Plane?
So you have an ordered pair and you want to graph it. Just remember that the first value is plotted along the x-axis and the second value in the pair is plotted along the y-axis. So count left or right, then up or down and you have...
Curated OER
How Do You Use a Graph to Reflect a Figure Over the X-Axis?
A reflection is just what you think it is, a mirror image. So how do you reflect a figure on a graph? Just flip it over. The teacher illustrates how to select a line of reflection (the x-axis) and make the calculations to flip the figure.
Curated OER
How Do You Make a Scatter Plot?
So you've got some x-values and some y-values and you want to make a scatter plot. First thing is to make a table for your x and y values. Then make ordered pairs and you can plot them.
Curated OER
What is the Domain of a Relation?
The teacher illustrates several ways to look at what the domain is in a set of numbers. Input, output, table, graphs, and diagrams are a few of the ways in which she illustrates the meaning of domain.
Curated OER
What Does Direct Variation Look Like on a Graph?
In a graph of a direct variation, the line must pass through the origin, (0,0). See the teacher illustrate what that looks like on a graph.
Curated OER
How Do You Solve and Graph Inequalities from a Word Problem?
Are you befuddled after reading this word problem? Not only is it a word problem but there are two variables, and not only does it have two variables, but it is an inequality. Don't pull your hair out! Take a deep breath and watch this...
Curated OER
What's the Y-Intercept?
In a linear equation, the y-intercept is really just the point where the graph of the line crosses the y-axis.
Curated OER
What's the X-Intercept?
In a linear equation, the x-intercept is really just the point where the graph of the line crosses the x-axis.
Curated OER
How is a Function Defined?
A function means that every element of the domain is paired with exactly one element in the range. The teacher illustrates this by using a table for the given set of numbers.
Curated OER
What's the Inverse of a Relation?
The instructor shows how to write the inverse of a relation. In a set of ordered pairs, she takes each pair of coordinates and flips the order, getting the inverse.
Curated OER
How Do You Check if a Point is on a Line If You Have a Graph?
The instructor demonstrates how to verify that a given point does or does not lie on the line of a given equation. She draws a graph (the axis lines need arrow ends) and plots the given linear equation. She then plots the coordinate...
Curated OER
How Do You Find the Domain and Range of a Relation?
A straightforward explanation of domain and range. The domain of a set of coordinates are the X-values, and then range are the Y-values of the set.
Curated OER
How Do You Find the Distance Between Two Points?
Learn how to use an algebraic formula to find the distance between two given points on a coordinate plane.
Curated OER
How Do You Find the Slope of a Line from Two Points?
The teacher demonstrates how to plug in values from two given points to find the slope of a line. She uses the slope formula and goes through the problem step-by-step.
CK-12 Foundation
Midpoints and Segment Bisectors: Lesson
Let's meet in the middle. As part of a comprehensive playlist on basic geometry, the video introduces the definitions of a midpoint and segment bisector. The resource shows a graphical approach to finding the midpoint of a line segment...
Curated OER
Graphing Ordered Pairs
A one-minute clip shows how to graph ordered pairs, a definition, example, and process are provided. This video is not narrated and uses nothing but visual aids and written explanations. Great for visual learners.