Answer:
The average rate of change in the interval [0,3] is 1
Explanation:
we know that
To find the average rate of change, we divide the change in the output value by the change in the input value
![(g(t2)-g(t1))/(t2-t1)](https://img.qammunity.org/2020/formulas/mathematics/middle-school/xmv9bh0499e18s9r5acuhkcn7q7pif4aq0.png)
In this problem we have
The interval [t1,t2] is [0,3]
so
![t1=0](https://img.qammunity.org/2020/formulas/mathematics/middle-school/cvmfkb9l8m12pbadfply39ore8lat73901.png)
![t2=3](https://img.qammunity.org/2020/formulas/mathematics/middle-school/wg26li2yhc0y00903khu4clwcmfw9j96h0.png)
![g(t2)=g(3)=4](https://img.qammunity.org/2020/formulas/mathematics/middle-school/96nnlqpieftl2e701dyp4m34cx095oj4a8.png)
Substitute
![(4-1)/(3-0)=1](https://img.qammunity.org/2020/formulas/mathematics/middle-school/sqip13i6nddltwf6lw02acyzx4ijxr4iqw.png)
therefore
The average rate of change in the interval [0,3] is 1