What is a line-of-fit? Given a data set, plot the ordered pairs on a graph. It looks like a scatter plot. Now estimate, and draw a line that best fits what the data represents. That is your line-of-fit.

Show your class what the point-slope form or a linear equation looks like and how to find it with this video. An instructor defines point-slope form and proceeds to work through an example. Great for in-class or at-home use.

One way to get values to be able to graph an exponential function is to make a table. This seems pretty straightforward. Set up a table to plug in random values for x. Then put those values into the equation to get the y-values. These...

Introduce learners to the use and function of a scatter plot. Using the example of a how many traffic tickets a woman received in a ten year period, the tutor explains how to create the scatter plot, label the x and y axis, and plot...

Since the focus of this video is on explaining the solution to a system of equations, the lecturer does not work through the problem. Instead, she points out that the solution should be an ordered pair that makes each equation a true...

Define a vector and teach your class about the different parts of a vector with this video. An instructor conveys what a vector is, labeling the parts and providing multiple examples. Learners can re-watch this video if they are...

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...

Show your class what the point-slope form or a linear equation looks like and how to find it with this video. An instructor defines point-slope form and proceeds to work through an example. Great for in-class or at-home use.

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.

If the y-value increases as the x-value increases then you have a positive correlation. Meaning that the line-of-fit has a positive slope.

If the y-value decreases as the x-value increases then you have a negative correlation. Meaning that the line-of-fit has a negative slope.

What is a line-of-fit? Given a data set, plot the ordered pairs on a graph. It looks like a scatter plot. Now estimate, and draw a line that best fits what the data represents. That is your line-of-fit.

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...

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...

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 y-axis) and make the calculations to flip the figure.

The teacher illustrates several ways to look at what the range is in a set of numbers. Input, output, stem and plot table, graphs, and diagrams are a few of the ways in which she illustrates the meaning of range.

The coordinate axes are the x-axis, which is the horizontal axis, and the y-axis, which is the vertical axis. Remember, these axes go on forever.

Just a quick diagram and explanation of the parts of the coordinate plane. You might want to remind your class to put arrows on the ends of the x-axis and the y-axis, as these lines go on forever.

In Algebra 1 the concept of relations is studied. As a starting point to this unit, guide your learners to identify algebraic relations and discriminate the domain and range within an ordered pair though this informative video. Assign...

Video explaining the contributions of Rene Decartes to Algebra and Geometry. [11:22]

This video identifies the four quadrants of the coordinate plane and explains how to identify what quadrant an ordered pair would be located in. Practice problems available. [2:24]

This video demonstrates how to identify the ordered pair of a point graphed on the coordinate plane and how to graph a point when given the ordered pair. It also goes a step further and demonstrates how to graph a geometric figure based...

This QuickTime movie provides an explanation of Truth Tables, ordered pairs, and graphing the ordered pairs. As you watch and listen to the teacher and student interact it helps clarify the thinking behind applying this concept.

This lesson discusses the relationship between positive and negative numbers. It is 1 of 13 in the series titled "Relating Positive and Negative Numbers."