Tell What the Output Value Is for the Function Machine $\frac { 1 } { 2 }$

Tell what the output value is for the function machine for an input of $\frac { 1 } { 2 }$

A) $f \left( \frac { 1 } { 2 } \right) = 12$
B) $f \left( \frac { 1 } { 2 } \right) = 22$
C) $f \left( \frac { 1 } { 2 } \right) = 20 \frac { 1 } { 2 }$
D) $f \left( \frac { 1 } { 2 } \right) = 10 \frac { 1 } { 2 }$
E) $f \left( \frac { 1 } { 2 } \right) = 7$