# Algebra

posted by
**Dele**
.

The maximum velocity of a roller coaster depends on the vertical drop from the top of the highest hill to the bottom of that hill. The formula:V(h)=√h-2 , gives the relationship between maximum velocity, V(h) in feet per second, and height, h in feet.

1. Identity the independent variable, dependent variable.

2. What is the domain of the radical function V?

3. What is the maximum velocity V(h) of the roller coaster when the height h is 66 feet? (Specify and explain your answer in words.

4. What is the height h of the roller coaster, if its maximum velocity V(h) is 32 feet per second? Specify and explain your answer in words.