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what is the constant variation of 2x+5y=0

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what is the constant variation of 2x+5y=0

asked Dec 5, 2013 in ALGEBRA 2 by johnkelly Apprentice
reshown Dec 5, 2013 by goushi
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1 Answer

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Direct variation equation is y = kx.

Given straight line equation is 2x+5y = 0

Subtract 2x from each side.

2x-2x+5y = -2x+0

5y = -2x

Divide to each side by 5.

5y/5 = (-2/5)x

y = (-2/5)x

Constant variation is k = -2/5.

answered Dec 5, 2013 by william Mentor

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