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# Writing the Equation of a Line in Slope-Intercept Form

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Author: Robin Nehila
##### Description:

This lesson will show you how to write an equation of a line given the graph of the line.

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Tutorial

## Use Slope and y-intercept to write an equation.

The graph of an equation in slope-intercept form, y=mx+b, is a line with a slope of m, and y-intercept of b.  You can use this form to write and equation of a line if you know its slope and y-intercept.

## Vocabulary Refresher

y-intercept: the y-coordinate of a point where the graph crosses the y-axis.

slope:  the ratio of the vertical change (the rise) to the horizontal change (the run.)

## Writing the Equation of a Line in Slope-Intercept Form.

Source: Worksheet made with Kutasoft Pre-Algebra