Lesson Equation of a Line

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This Lesson (Equation of a Line) was created by by rapaljer(2773)

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About rapaljer: Retired Professor of Mathematics from Seminole Community College after 36 years.

Write the equation of the line with x-intercept (12,0)and y-intercept (0,4).

The equation of a line can be written in slope-intercept form, y=mx+b, where "m" is the slope and "b" is the y-intercept of (0,4). Since you are given the y-intercept, all you need is the slope, which is m=(RISE)/(RUN)

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In this case, m=(4-0)/(0-12)=4/-12=-1/3

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The equation of the line is therefore: y=(-1/3)x+4

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R^2 at SCC

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