Answer
$\frac{9}{2}$
Work Step by Step
We are given that $g(x)=2x^{2}+4$.
$g(\frac{1}{2})=2(\frac{1}{2})^{2}+4=2\times(\frac{1}{2}\times\frac{1}{2})+4=2\times\frac{1}{4}+4=\frac{1}{2}+4=\frac{9}{2}$
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