1. When the dependent variable stays the same as the independent variable increases, the rate of
change is (Positive, negative, zero, undefined) Choose one.
2. When the dependent variable decreases as the independent variable increase, the rate of change is
(Positive, negative, zero, undefined) Choose one.
3. When the dependent variable increase as the independent variable stays the same, the rate of change
is (Positive, negative, zero, undefined) Choose one.
Find the rate of change in each problem below.
4. A climber is on a hike. After 2 hours he is at an altitude of 400 feet. After 6 hours, he is at an altitude
of 700 feet. What is the average rate of change?
5. A rocket is 1 mile above the earth in 30 seconds and 5 miles above the earth in 2.5 minutes. What is
the rocket's rate of change in miles per second? What about miles per minute.