A plane takes off and climbs steadily gor 30 minutes until it reaches 35,000 feet. It travels at that altitude for 2 hours until it begins to descend to land, which it takes 15 minutes at a constant rate. Determine the domain and range.
This is a function where: x - time in minutes; y = f ( x ) - altitude of a plane in feet. Max altitude = 35,000 feet 0.5 h + 2 h + 15 min = 30 min + 120 min + 15 min = 165 min Domain: x ∈ [ 0; 165 ] Range: y ∈ [ 0; 35,000 ]
