Writing equations of perpendicular lines

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» Writing equations of perpendicular lines

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Mar 16, 2007, 12:13 PM

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Writing equations of perpendicular lines

How do I write an equation of a line that is perpendicular to y=-3 + 5 and passes through
(4,3)?

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Mar 16, 2007, 12:26 PM	#2

galactus Mathematics Expert Join Date: Sep 2006 Location: Chaneysville, Pa. Posts: 983	I reckon you mean y=-3x+5?. If so, the slope of this line is -3. The slope of the perpendicular is the negative reciprocal of the aforementioned slope. Then use your given points, (4, 3), to find the equation of said line.

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