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) $f \left( \frac { 1 } { 2 } \right) = 7$

Question

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) $f \left( \frac { 1 } { 2 } \right) = 7$

Quizplus · Accepted Answer

The given function machine does the following: it takes an input, multiplies it by 10, and then adds 2. So for an input of $\frac{1}{2}$, we have $f\left(\frac{1}{2}ight)= 10\cdot\frac{1}{2}+2 = \boxed{7}$. Therefore, the correct choice is $\boxed{	extbf{(B)}}$.

Tell What the Output Value Is for the Function Machine 12\frac { 1 } { 2 }21​

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