Is $xy= 1/5$ a direct variation, inverse variation, joint or neither?

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Answer 1 · 2015-06-03T19:19:34

Given $xy = 1/5$

multiplying $x$ by a factor of $k$
results in the need to divide $y$ by $k$ to maintain the equality.

Therefore the equation is an inverse variation.

Is xy= 1/5xy= 1/5 a direct variation, inverse variation, joint or neither?