Question

This graph shows the distance that a robot walks. What is the rate of change of the robot's location?

Answer 1

Solution:

The rate of change, m, is;

$\begin{gathered} m=\frac{d_2-d_1}{t_2-t_1} \\ \\ \text{ Where }d=distance,t=time \end{gathered}$

Thus;

$\begin{gathered} (1,10),(3,30) \\ \\ m=\frac{30-10}{3-1} \\ \\ m=\frac{20}{2} \\ \\ m=10 \end{gathered}$

ANSWER: (D) 10 feet per minute