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Published byLeslie Lambert Modified over 8 years ago

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**Objective - To write equations of parallel and perpendicular lines.**

Graph the following on the coordinate plane. y x Parallel lines have the same slope.

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**Write the equation of the line in slope-intercept form**

that is parallel to y = -2x - 9 and contains (4, -3).

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**Find the equation of a line in standard form that**

is parallel to 3x - 5y = 10 and contains (-2,6). (-2,6) 3x - 5y = 10 -3x x -5y = -3x + 10 or

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**Perpendicular lines have slopes that are**

Graph the following on the coordinate plane. y x Lines appear perpendicular Perpendicular lines have slopes that are opposite reciprocals

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Find the following: Opposite Reciprocal Number Opposite Reciprocal 3 0.2 -8

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**Find the equation of a line in standard form that**

is perpendicular to 4y - x = 6 and contains (2,5). 4y - x = 6 (2,5) +x +x 4y = x + 6

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**Determine whether the slopes are perpendicular.**

1) Yes, perpendicular. 2) No, not perpendicular. 3) Yes, perpendicular.

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**Find the equation of a line in standard form that is**

perpendicular to 3x + 5y = 7 and contains (-4,-8). (-4,-8) 3x + 5y = 7 -3x x 5y = -3x + 7 or

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