A1-U2.1 Lesson: Graphing and Writing Linear Equations

Goal:

Students are going to graph equations that are presented in slope intercept form, and then write equations in slope intercept form from graphs.

Slope Intercept Form

The point where a line crosses the y-axis.

​Y-Intercept

Steepness of a line.
The rise over run of a line.
The change over time of a line.

​Slope

Procedures: Graphing Slope Intercept

1) Graph the y-intercept coordinate.
2) Use the slope as directions to step to and graph the next point.
3) Connect the points to create a graphed linear equation.

Procedures: Writing Slope Intercept

1) Determine the y-intercept if possible.
2) Find the rise and run of the graphed line.
3) Use the y-intercept and slope to write the linear equation out in slope intercept form.

​Example 1:

​Example 2:

Write the equation of the graphed linear equation.

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​Example 3:

Write the equation of the graphed linear equation.

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​Example 4: