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# Graphing Linear Equations - PowerPoint PPT Presentation

Graphing Linear Equations. Linear Equation: an equation whose graph forms a line. . Linear means of a line. So a linear equation is the equation of a line. In linear equations, all variables are taken to the first power. is linear. is not. Why?.

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## PowerPoint Slideshow about ' Graphing Linear Equations' - steven-hartman

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Presentation Transcript

Linear means of a line. So a linear equation is the equation of a line.

In linear equations, all variables are taken to the first power.

is linear.

is not.

Why?

Suppose you were asked to graph the solution set of the linear equation,

You could start by creating a table of values.

Choose any number to use as linear equation, x or y . . .

. . . and substitute the number for the variable. linear equation,

Then calculate to find,

Continue, until you have 3 sets of linear equation, x and y values.

Continue, until you have 3 sets of linear equation, x and y values.

When ready to graph the line.x is 0, y is 3, so plot the point, (0, 3).

And when ready to graph the line.x is 3, y is 0, so plot the point, (3, 0).

And finally, when ready to graph the line.x is -3, y is 6, so plot the point, (-3, 6).

If they do line up, you just need to connect the dots. ready to graph the line.

If the three points do not line up, you need to find your mistake.

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