Graphing with Slope and Y-intercept

This Movie (Quicktime)
will show you how to graph a linear equation using slope and y-intercept.

The following is the movie transcript.

Hello, this is Cari and I am going to show you how to find slope and y-intercept to graph a linear function.

Rewrite the following equation in slope–intercept form. Two x minus three y equals nine. Negative three y equals negative two x plus nine. Divide by negative three so y equals two-thirds x minus three.

To graph a linear equation by using slope and y-intercept method y equals mx plus b. There are four steps in graphing a line with this method. One, locate the y-intercept on the y-axis. Two, using the slope, determine the amount of vertical movement. Three, locate additional points on the graph by counting the horizontal and vertical movements. Four, draw a line through the points to connect.

For our problem, we are going to locate the y-intercept on the y-axis which is negative three. Step two, using the slope; determine the amount of vertical and horizontal movement. Two indicates vertical movement and three indicates horizontal movement. Step three, locate additional points on the graph by counting up and over. Step four, draw a line through the points to connect.

This concludes how to find slope and y-intercept to graph a linear equation.

End Movie Transcript

Posted at 01:43PM Nov 17, 2006 by llinebarger in Intermediate Algebra  |