In this lesson you will learn how to graph a linear function. You will learn slope intercept form and will be able to graph a line given its equation.

Slope-intercept form of a line is used most often when graphing lines.

Slope-intercept form: y = mx + b

The link below will take you to a site that allows you to change the values of m and b. After you have clicked on the link below you will need to click on the grey box the says "Click here to start". Change each value and observe how it effects the graph of the line.

Interactive Graphing Tutorial
Questions:
1. What does changing the value of m do to the line?
2. What does changing the value of b do to the line?

Now it's your turn to graph lines in slope-intercept form. Graph at least five lines using the link below.

Graphing Lines Practice

Sometimes you are asked to graph lines that are not written in slope-intercept form. When this happens it is important to solve the equation for y. Once the y is alone on one side you can identify the slope and the y-intercept. The link below will give you an equation that you must first rewrite in slope intercept form before you can identify the correct graph. You must answer four questions correct.
More Practice