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Question

Determine the type of proportionality between variables x and y in the equation y = x2 - 2.


A

Directly proportional

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B

Inversely proportional

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C

Both directly and inversely

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D

Neither directly nor inversely

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Solution

The correct option is D

Neither directly nor inversely


The condition for two variables x and y to be directly proportional

xy = constant

and condition for inversely proportional

xy = constant

The given equation does not satisfy any of these conditions. So, y is neither directly nor inversely proportional to x.


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