Check if the relation given by the equation represents y as function o – InterviewSolution

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1.

Check if the relation given by the equation represents y as function of x.x + y2 = 9

Answer»

x + y² = 9

\(\therefore\) y² = 9 - x

\(\therefore\) y = \(\pm\sqrt{9-x}\)

\(\therefore\) For one value of x, there are two values of y.

\(\therefore\) y is not a function of x.

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