1. A cup of water increased in temperature from 22°C to 60°C over the course of 20 minutes. What is the rate of change?

1. 38 °C/min
2. 1.9 °C/min
3. 0.53 °C/min
4. 20 °C/min

2. James ran 400 meters in 65.2 seconds. What is his rate of change?

1. 1.2 m/s
2. 0.2 m/s
3. 400 m/s
4. 6.1 m/s

3. A student’s grade goes from a 92 to a 56 in
   3 weeks because they didn’t do their homework. Calculate the student’s rate of grade change.

1. 10 points/week
2. 11 points/week
3. 12 points/week
4. 13 points/week

4. A glacier advanced down a mountain from an elevation of 2010 m to 1770 m in 5 years.
   What was the glaciers rate of change?

1. 47.8 m/yr
2. 0.02 m/yr
3. 56.1 m/yr
4. 240 m/yr

5. An ice cube with a mass of 10.5 grams is left to melt, 5 minutes later the ice cube is 4.4 grams. What is the rate of change?

1. 56 g/min
2. 1.25 g/min
3. 0.82 g/min
4. 1.22 g/min
   

6.  Write your own rate of change question.  Solve it, and show all work!