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The line equation is $\"\"$ .

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Line equation in slope-intercept form $\"\"$ , where $\"\"$ is slope and $\"\"$ is

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$\"\"$ -intercept.

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Write the equation $\"\"$ in slope-intercept form.

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$\"\"$

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Compare with $\"\"$ .

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Slope of the line $\"\"$ .

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Find the family of lines with different values of $\"\"$ .

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Substitute $\"\"$ in $\"\"$ .

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$\"\"$

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$\"\"$ .

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Substitute $\"\"$ in $\"\"$ .

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$\"\"$

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$\"\"$ .

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Substitute $\"\"$ in $\"\"$ .

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$\"\"$ .

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If $\"\"$ , then $\"\"$ .

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If $\"\"$ , then $\"\"$ .

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If $\"\"$ , then $\"\"$ .

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Graph the lines using intercepts :

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Observe the graph :

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The three lines have equal slope $\"\"$ and they are parallel.

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The three lines have equal slope $\"\"$ and they are parallel.