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Graphing a Line using Table of Values

A Linear Equation ­ a straight line graph in the coordinate plane

Equations of a straight line can be written in 3 ways:

•  Ax + By +C = 0

•  Ax + By = C

•  y = mx + b

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In order to graph a line from TOV, the eq'n must be in its slope-intercept form

• Graph   y = 2x + 3Example:

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Example: • Graph   4x + 2y = 12

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Example: • Graph    y = ­4x = 3

• Equations with only y-values are __________• Equations with only x-values are __________

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Is (6, 2) on the line given by the equation  2x ­ 3y = 6  ?Example:

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ASSIGNMENT

• Exercise 6