# SOLUTION: y varies directly with x. so if: if x is doubled, what happens to y? what if x is halved?

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 Question 96867This question is from textbook : y varies directly with x. so if: if x is doubled, what happens to y? what if x is halved? This question is from textbook Answer by stanbon(57203)   (Show Source): You can put this solution on YOUR website!y varies directly with x. y = kx ----------- if x is doubled, what happens to y y = k(2x) y = 2kx "y" is doubled ================== what if x is halved? y = k((1/2)x) y = (1/2)kx "y" is halved ============ Cheers, Stan H.