U.S. Airplane Passenger Projections  In a report issued by the U.S. Department of Transportation in 2012, it was predicted that the number of passengers boarding planes in the United States would grow steadily from the current 0.7 billion boardings/year to 1.2 billion boardings/year  in 2032. Find a linear function f giving the projected boardings (in billions) in year t , where t =0 corresponds to 2012. What is the projected annual rate of growth of boardings between 2012 and 2032? How many boardings per year are projected for 2022?

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Differential Equations

Have you ever observed the movement of the satellites and rockets or how the planets go around the sun in their orbits? How will you determine their motion? Definitely they follow some scientific laws and these kinds of problems are framed as differential equations.