Question

Find the average rate of change for each the following graphs over the given interv

Answer 1

The expression for the average rate in change is :

`\text{ Average Rate =}(y_2-y_1)/(x_2-x_1)`

In the graph consider any two coordinates : (2, 1) & ( 1, 3)

Substitute the coordinate :

`\begin{gathered} \text{ Average Rate =}(y_2-y_1)/(x_2-x_1) \\ \text{Average rate = }(3-1)/(1-2) \\ \text{Average Rate=}(2)/((-1)) \\ \text{Average Rate=-2} \end{gathered}`

Average Rate = -2