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April 16, 2014

Homework Help: parallell and perpendicular lines

Posted by luckybee on Sunday, February 19, 2012 at 5:17pm.

please check my homework

given P(7,2) and the line y + 3x=7 find the equation for the line

parallel line: y+3x+7
y=-3(x-7) +7
y-2=-3x+21+7
y=-3x+28+2
y=-3x+30

perpendicular line:
y-2=1/3(x-7) +7
y-2=1/3x-7/3 +21/3
y-2==1/3x + 14
y=1/3x + 14 +2
y=1/3x +16

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