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18-10-2018
Mathematics

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y varies directly as x. y = –9 when x = 3 What is the equation? Find y when x = –15.

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18-10-2018

Answer: -3 = k

Step-by-step explanation: y/x = k is the equation.

Okay so you plug in y into that equation and x also. You should have the equation -9/3 = k. All you do is solve! You should get -3=k. I hope this helped! :D

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