Teri F.
asked • 01/17/13Write the equation of a line that is perpendicular to the given line and that passes through the given point.
Write the equation of a line that is perpendicular to the given line and that passes through the given point.
y + 2 =1/3 (x – 5); (–4, 3)
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1 Expert Answer
Robert J. answered • 01/17/13
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Certified High School AP Calculus and Physics Teacher
The slope of the perpendicular line is the negative reciprocal of (1/3), which is -3Use point-slope form for the point (-4, 3) with slope = -3,
y - 3 = -3(x + 4) <==Answer
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Herb K.
given line is in point-slope form, with slope = m = 1/3; line perpendicular to given line would have slope = -3/1 = -3, so that second line, in point-slope form, would be: y - 3 = -3(x - (-4)); or y - 3 = -3(x + 4)
01/17/13