Manipulating Graphs

The instructor uses a computer graphing program to illustrate how a line changes slope by manipulating the slope values in the equation. He also manipulates the y-intercept value to see where the line crosses the y-axis.

Here is an introductory lesson to help you understand the slope of a line, whether positive or negative and the y-intercept's meaning. Several examples of changes in slope are shown on a graph, and the instructor relates them to how the...

Given a linear equation in standard form, find the x-intercept and y-intercept. In this video, Sal shows how to set x = 0 and solve the y-intercept and how to set y = 0 and find the x-intercepts.

Rates of change can be a slippery slope. The resource makes the connection between the rate of change and the slope of a line. It continues on to provide examples of how to interpret the slope and the y-intercepts of linear equations...

Help mathematicians see lines from equations as they learn the patterns in the equations. An instructional video describes the steps to graphing a linear function. All equations begin in slope-intercept form and result in a line with...

Looking to teach your class how to find the y-intercept of a line using another point and the slope? Consider this video as an instructional tool. Learners can watch as a lecturer demonstrates how to find the y-intercept, using the...

Looking to teach your class how to find the y-intercept of a line using another point and the slope? Consider this video as an instructional tool. Learners can watch as a lecturer demonstrates how to find the y-intercept, using the...

In a linear equation, the y-intercept is really just the point where the graph of the line crosses the y-axis.

Given a linear equation, find the x-intercept and the y-intercept to graph the line. Not sure what to do or where to start? Watch this video and see the instructor break it down and make it understandable.

In a linear equation, the y-intercept is really just the point where the graph of the line crosses the y-axis.