14. f(x)=2 cos(x)+1 amp = midline =

Explanation:

Step1: Recall amplitude formula

For a function of the form $y = A\cos(x)+k$, the amplitude is given by $|A|$. In $f(x)=2\cos(x) + 1$, $A = 2$. So, the amplitude $|A|=2$.

Step2: Recall mid - line formula

For a function of the form $y=A\cos(x)+k$, the mid - line is the horizontal line $y = k$. In $f(x)=2\cos(x)+1$, $k = 1$. So the mid - line is $y = 1$.

Answer:

Amp = 2 Midline = $y = 1$