Question 79940
Hint: The slope should be negative, because the airplane is descending. I assume this is a fighter aircraft because this pilot is popping a lot of passengers' eardrums. 

If you draw a quick sketch of this problem, you'll see that the airplane starts at (0, 47000) and descends to (-94,000, 0).

Therefore, slope = rise/run

                 = (47000 - 0)/(-94000 - 0)

                 = -47/94 or -0.5