Curated OER
What is a Linear Inequality?
What makes an expression an inequality? Well, it would be considered an inequality if the expression has a greater than symbol, a less than symbol, a greater than or equal to symbol, or a less than or equal to symbol. This would mean...
Curated OER
What's a Function?
There are many ways to represent a function. The main idea though is that for every input there is an output. Watch this video as the instructor illustrates and explains several different ways to show a function. She demonstrates domain...
Curated OER
How Do You Find the X- and Y-Intercepts of a Line If You Have a Graph?
The x-intercept is the point at which the line of the equation crosses the x-axis. The y-intercept is the point at which the line of the same equation crosses the y-axis. It's as easy as that. Look at your graph and note these locations.
Curated OER
How Do You Use a Graph to Translate a Figure Vertically?
Transformations. Learn a little bit of geometry. See how to translate a geometric figure on a coordinate plane vertically by sliding it over. Simply pick a point on the figure and count the units you want to move it. Then repeat that for...
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How Do You Use a Graph to Translate a Figure Horizontally?
Transformations. Learn a little bit of geometry. See how to translate a geometric figure on a coordinate plane horizontally by sliding it over. Simply pick a point on the figure and count the units you want to move it. Then repeat that...
Curated OER
How Do You Use a Graph to Translate a Figure Diagonally?
This presentation is pretty straightforward in illustrating how to translate a figure on the coordinate plane. Watch the instructor follow the directions to translate the figure four units to the right and six units down.
Curated OER
How Do You Use Coordinates to Reflect a Figure Over the Y-Axis?
Perform a reflection of a figure over the y-axis. This seems pretty straightforward. But also learn how to use the coordinates to reflect a figure.
Curated OER
How Do You Use Coordinates to Reflect a Figure Over the X-Axis?
Perform a reflection of a figure over the x-axis. This seems pretty straightforward. But also learn how to use the coordinates to reflect a figure.
Curated OER
How Do You Determine if an Ordered Pair is a Solution to an Equation?
There are several ways to determine if an ordered pair is the solution to a linear equation. The ordered pair can be plugged in to the equation to check if it's a solution. However, in this video the instructor sets up a table and plugs...
Curated OER
What is a Line of Reflection?
Line of reflection is basically a geometry term used in the transformation of figures. It identifies the line on the graph that you reflect a figure over. The line can be vertical, horizontal, and diagonal. Actually, it can be any line...
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What Does the Constant 'h' do in y = |x-h|?
Translating the graph of an absolute value equation horizontally based on the value of a constant, seems to be a big task. That sentence was a mouthful. So what does it all mean? Click on this video to observe the instructor illustrate...
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How Do You Graph a Quadratic Equation in Intercept Form?
Watch this video and find out how to graph a quadratic equation when it's in intercept form! After going through the different forms of quadratic equations, an instructor leads viewers through an example problem. For the example problem,...
Curated OER
How Do You Make a Table for a Quadratic Function?
Making a table for a quadratic function is not so complicated. Here are a few tricks to make it easier. One trick is to find the axis of symmetry and another is to find the vertex. These two values can be used to pick values to plug in...
Curated OER
How Do You Solve a System of Equations by Graphing?
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 intersect. What does that mean? That means that...
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How Do You Use the Vertical Line Test to Figure Out if a Graph is a Function?
How does the vertical line test help you decide if the graph of an equation is a function? The instructor draws a graph and then draws the line of the equation. She demonstrates how to use the vertical line test to determine if the graph...
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How Do You Graph a Line If You're Given the Slope and the Intercept?
You have been given the value for the y-intercept and the slope of a line. Now you have to graph it. So draw a graph, plot your y-intercept and then count out your movement for slope. Don't forget to connect the dots and draw a line...
Curated OER
How Do You Write an Equation for a Translation of an Absolute Value Function?
Translate an absolute value equation, horizontally and vertically. First, what is the form of an absolute value equation? There are several variables that represent specific pieces in this equation. Vertical, horizontal, constant,...
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How Do You Identify Exponential Behavior from a Pattern in the Data?
The teacher illustrates two different exponential tables and explains what each one of them means. These are function tables, one demonstrates exponential growth and the other exponential decay. She clarifies how to analyze the...
Curated OER
How Do You Figure Out if an Absolute Value Inequality is an AND or OR Compound Inequality?
The problem is to determine if a given inequality represents an AND or OR compound inequality. There has to be a way to make that determination. Well, one way is to graph it on a number line and actually see what happens. Do the lines...
Curated OER
How Do You Solve an AND Compound Inequality and Graph It On a Number Line?
Solving a compound inequality is not as difficult as it might seem at first. Just break it apart and solve each side as an individual problem. See how to write these two solutions in set-builder notation. Then graph each inequality on...
Curated OER
How Do You Find the Y-Coordinate of a Point on a Line If You Have a Graph?
Looking at the graph of a given linear equation, find the y(4). What? What does that even mean, find y(4)? Watch this video and the teacher will show and tell everything about finding the y(4) from the given graph.
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How Do You Graph a Linear Equation by Making a Table?
Graph a linear equation by creating a table to get some values to plot. Select some values for x and plug them into the equation to get the y values. The x and y values make ordered pairs that can be plotted on the graph. After plotting...
Curated OER
What is an Ordered Pair?
An ordered pair is comprised of an x-value, and a y-value. The x-value always comes first, then the y-value in an ordered pair. This ordered pair represents a point on a coordinate plane. There are many meanings of an ordered pair and...
Curated OER
What are the Endpoints of a Line Segment?
A simple video on how to identify the endpoints of a line segment. Have your class watch this video to clarify any confusions about endpoints. This could be used as extra help for learners who are having difficulty, or as a supplement to...