Question #N567
The function \(f\) is defined by \(f(x) = \frac{2x}{x+1}\). What is the value of \(f(\frac{1}{2})\)?
A. 1
B. 2
C. 3
D. 4
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Correct Answer is: A
Substitute \(x=\frac{1}{2}\) into the function: \(f(\frac{1}{2}) = \frac{2(\frac{1}{2})}{(\frac{1}{2})+1} = \frac{1}{(\frac{3}{2})} = \frac{2}{3}\).