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14 July, 19:05

Write the equations of two lines whose graphs are perpendicular to one another

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  1. 14 July, 19:08
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    Write 2 equations in slope - intercept form: y = mx + b

    The slopes of perpendicular lines are negative reciprocal of each other. That is, if you have a slope of 2/3, the perpendicular slope will be - 3/2.

    y = 2/3x + 3

    is perpendicular to

    y = - 3/2x - 9

    Only the slope matters in the equations. The y-intercept can be anything. I randomly chose + 3 and - 9.
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