1.

If x and y are in inverse proportion, then which of the following relations is CORRECT?

A. xy = k
B. \({x_1},{y_2} = \frac{{{x_2}{y_1}}}{k}\)
C. \(\frac{x}{y} = k\)
D. \(x = \frac{{{y_2}}}{{{y_1}}}\)
Answer» B. \({x_1},{y_2} = \frac{{{x_2}{y_1}}}{k}\)


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