To calculate the average rate of change of a function over the interval \([a, b]\), we use the formula:
\[ \text{Average Rate of Change} = \frac{f(b) - f(a)}{b - a} \]
In this case, you want to find the average rate of change over the interval \([3, 4]\). However, you did not provide the specific function \(f(x)\) or the values of \(f(3)\) and \(f(4)\).
If you provide the values of the function at these points, I can help you calculate the average rate of change. Alternatively, if the values are available on a graph, make sure to find \(f(3)\) and \(f(4)\) and follow the above formula to compute it.