Answer:
2
Explanation:
We are given that
The rate of change between point A and point B is 2.
We have to find the rate of change between point C and point D.
From given graph
The point C=(1,2)
D=(2,4)
Rate of change is given by =
![(y_2-y_1)/(x_2-x_1)](https://img.qammunity.org/2020/formulas/mathematics/middle-school/fswpauncmnfrnls5b0imb8puvjbrm5eh5l.png)
Substitute the values then we get
Rate of change=
![(4-2)/(2-1)=2](https://img.qammunity.org/2020/formulas/mathematics/college/ls85xkq2tx4u20jvvben1k96v5w8pi8k43.png)
Hence, the rate of change between point C and point D =2