What value of x does not occur for the graph of the inverse variation?

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Need help in answering this question - What value of x does not occur for the graph of the inverse variation?

Apr 15th, 2015

x cannot equal 0 in inverse variation.

The reason is that in inverse variation the product of the two quantities ai always a constant - that is, if x varies inversely as y then               xy = k ( a constant not equal to zero)

If x = 0, then the product of x and y would be 0 for every possible value of y so it would not be inverse variation

For instance if y=2 and x=0

When we double y to 4 x should be halved - but it remains 0

Apr 15th, 2015

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Apr 15th, 2015

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Apr 15th, 2015
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Apr 15th, 2015
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