3. For a model rocket, the altitude h, in meters, can be written as a function of time t, in seconds. The rocket is shot from the ground and it has an initial velocity of 81 meters per second.
a) What are the independent and dependent variables for this situation?
b) Write a function that models the height of the rocket.
c) How long does the rocket take to reach the maximum height? What is the maximum height?
d) When will the rocket hit the ground?
e) At what time(s) will the rocket be 300 meters above the ground?
f) State the domain and the range for the situation.
g) Graph the function.

Desmond wants to sell his car that he paid $8,000 for 2 years ago. the car depreciated, or decreased in value, at a constant rate each month over a 2-year period. if x represents the monthly depreciation amount, which expression shows how much desmond can sell his car for today? 8,000 + 24x 8,000 - 24x 8,000 + 2x 8,000 - 2xdesmond wants to sell his car that he paid $8,000 for 2 years ago. the car depreciated, or decreased in value, at a constant rate each month over a 2-year period. if x represents the monthly depreciation amount, which expression shows how much desmond can sell his car for today? 8,000 + 24x 8,000 - 24x 8,000 + 2x 8,000 - 2x

There are 8 movies that you would like to see currently showing in theatres. in how many different ways can you choose a movie to see this saturday and one to see this sunday?

For which scatterplot is the correlation strongest?