# Attend to precision. The equation y âˆ’ 160 = 40(x âˆ’ 1) represents the height in feet, y, of a hot-air balloon x minutes after the pilot started her stopwatch. a. Is the hot-air balloon rising or descending? Justify your answer. b. At what rate is the hot-air balloon rising or descending? Be sure to use appropriate units. c. What was the height of the balloon when the pilot started her stopwatch?

###### Question:

Attend to precision. The equation y âˆ’ 160 = 40(x âˆ’ 1) represents the height in feet, y, of a hot-air balloon x minutes after the pilot started her stopwatch.
b. At what rate is the hot-air balloon rising or descending? Be sure to use appropriate units.
c. What was the height of the balloon when the pilot started her stopwatch?

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