w8anJ1oannkrist w8anJ1oannkrist

26-11-2016
Mathematics

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suppose y varies directly as x. if the value of x is doubled, what happens to the value of y?

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alsteva alsteva

28-11-2016

y varies directly as x => y = kx

If x is doubled then y is doubled.
(2y) = k(2x) => 2y = 2kx => y = kx

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