# Linear Functions

by
**sjspeegle**

Last updated 3 years ago

** Discipline: **

Math ** Subject: **

Algebra I
** Grade:**

9,10

Bibliographysjspeeglehttp://www.wikihow.com/Graph-Linear-Equationshttp://www.dreamstime.com/stock-photography-math-physics-formulas-chalkboard-image26721462

Linear Functions

Make sure the equation is in slope-intercept form

Once in slope-intercept form, the letter "m" denotes the slope. Slope is defined as rise over run; the change in y over the change in x.

Start at the y-intercept and plot points using slope, or rise over run.Draw a line through the dots to create a graph of the function or equation.Whereas positive-value slopes travel upward, negative-value slopes travel downward.

"b" is the y-intercept. The y-intercept is the point where the line crosses the y-axis.

The numerator is how far the line travels vertically.The denominator is how far the line travels horizontally.

http://www.purplemath.com/modules/slopgrph.htm

http://www.math.com/school/subject2/lessons/S2U4L3GL.html

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