12. h(x)=-1/2 sin(x)+2\namp = midline =

Explanation:

Step1: Recall amplitude formula

For a function of the form $y = A\sin(x)+k$, the amplitude is given by $|A|$. In the function $h(x)=-\frac{1}{2}\sin(x)+2$, $A =-\frac{1}{2}$.

Step2: Calculate amplitude

$|A|=\left|-\frac{1}{2}\right|=\frac{1}{2}$.

Step3: Recall mid - line formula

For a function of the form $y = A\sin(x)+k$, the mid - line is given by the equation $y = k$. In the function $h(x)=-\frac{1}{2}\sin(x)+2$, $k = 2$. So the mid - line is $y = 2$.

Answer:

Amp = $\frac{1}{2}$ Midline = $y = 2$