Assignment:
An airplane climbs from sea level to a cruising altitude of 31,500 feet at a rate of 6300 ft/min. After cruising for 20 minutes, the airplane begins its descent at a rate of 3500 ft/min. If we were to sketch a graph of the airplane's flight pattern, which measurement would the x-axis represent? Which measurement would the y-axis represent? Describe the graph.
Provide complete and step by step solution for the question and show calculations and use formulas.