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Range

If f x =x+1...

Question

If $f (x) = x + 1$ and $g (x) = 2 x,$ then $f {g (x)}$ is equal to

2 (x + 1)

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2 x (x + 1)

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x

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2 x + 1

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2 x^{2} + 1

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Solution

The correct option is C $2 x + 1$
Given, $f (x) = x + 1$ and $g (x) = 2 x$

Therefore, $f {g (x)} = f (2 x) = 2 x + 1$

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