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5x+y= -1, x-5y=10 is it parallel,perpendicular or neither

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5x+y= -1, x-5y=10 is it parallel,perpendicular or...

determine if the equation is perpendicular parallel or niether

parallel lines
perpendicular lines

asked May 4, 2012 in Algebra 1 Answers by anonymous

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1 Answer

5x + y = -1

y = -5x -1

slope = -5

x - 5y = 10

-5y = -x + 10

y = (1/5)x - 2

slope = 1/5

the slopes are perpendicular because if you take -5, change the sign, and flip the fraction, you get 1/5

answered May 26, 2014 by johnperkins Level 13 User (103k points)
edited Jul 28, 2014 by johnperkins

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