what is the equation of the midline for this graph? enter your answer in the box. midline:

Explanation:

Step1: Identify max and min values

The maximum value of the graph is $y = 4$ and the minimum value is $y=2$.

Step2: Calculate mid - value

The mid - value (midline) of a periodic function is given by $y=\frac{y_{max}+y_{min}}{2}$. So, $y=\frac{4 + 2}{2}$.

Step3: Simplify the expression

$y=\frac{6}{2}=3$.

Answer:

$y = 3$