The graph a function $f$ is given. For what values of $x$ is $f (x) = 2$

- 3, 1

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- 1, 3

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1, - 1

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none of these

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Solution

The correct option is A $- 3, 1$
From graph it is clear that, function value is $2$ at two points $x = - 3$ and $1$
Hence solution of $f (x) = 2$ is $x = - 3, 1$

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