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Mathematics 9 Online
OpenStudy (anonymous):

true or false? y varies directly with x and y and y=-9 when x=3. when y+27, the value of x =9. a. true b. false

OpenStudy (anonymous):

In direct variation, y = kx. Plug it in. -9 = 3k -3 = k Plug again to check. 27 = 9k 27 = 9(-3) 27 = -27 The statement is false.

OpenStudy (anonymous):

I agree with Kdwndr

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