Mathematics, 05.05.2020 00:49 ny01282005
After traveling for 4 hours and 1800 miles, an airplane begins a steady descent. When it begins descending, its altitude (height) is 33,000 feet. After 8 minutes, it is at 17,000 feet.
Answer the questions to write a function that models the plane's altitude.
1. How quickly does the airplane descend? In other words, what is the rate of change of the plane's altitude? Show your work.
2. When graphing the descent of the plane, what would the starting value for its altitude be?
3. Write a linear function in y = mx + b form that gives the plane's altitude after it begins its descent. Use x to represent the time (in minutes) after the descent starts and y to represent the plane's altitude (in feet).
4. Is there information given in this problem that you did not need to write an equation for the descent? If so, what unnecessary information were you given?
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