Question Details

For all real values of x, the range of the function $f (x) = \frac{x^{2} + 2 x + 4}{2 x^{2} + 4 x + 9}$ is:

Options

A

$[\frac{4}{9}, \frac{8}{9}]$

B

$[\frac{3}{7}, \frac{8}{9})$

C

$(\frac{3}{7}, \frac{1}{2})$

D

$[\frac{3}{7}, \frac{1}{2})$

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