Question

determine the equation of the midline of the following graph.

Explanation:

Step1: Find maximum and minimum values

From the graph, the maximum value \( y_{max}=3 \) and the minimum value \( y_{min}=-3 \).

Step2: Use midline formula

The formula for the mid - line of a function \( y = f(x) \) is \( y=\frac{y_{max} + y_{min}}{2} \).
Substitute \( y_{max}=3 \) and \( y_{min}=-3 \) into the formula: \( y=\frac{3+( - 3)}{2}=\frac{0}{2}=0 \).

Answer:

$y = 0$