(Solved): I read the answer and still do not understand, please explain in detail thank you. Given the graph ...

I read the answer and still do not understand, please explain in detail thank you.

Given the graph of \( f(x) \) below. Determine the average rate of change of \( f(x) \) from \( x=-2 \) to \( x=2 \). Give your answer as a simplified fraction if necessary. For example, if you found that \( m_{\text {sec }}=\frac{2}{3} \), you would enter \( \frac{2}{3} \).