crsystalstover0 crsystalstover0
  • 18-10-2018
  • Mathematics
contestada

y varies directly as x. y = –8 when x = –2 What is the equation? Find x when y = 32.

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marx0
marx0 marx0
  • 18-10-2018

Answer: 8 = x


Step-by-step explanation: Okay use this formula first y/x = k

You plug in y and x.

y/x = k

-8/-2 = k

4 = k

To get x when y = 32 you use this formula.

y/k = x

Plug in y = 32 and k from the last problem.

y/k = x

32/4 = k

8 = x

I hope this helped! :D



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