a plane that carries mail makes a round trip each day from chicago to new york. it makes 2 intermediate stop on the way to new york nad 1 intermediate stop on the way back to chicago suppose you make a graph of the altitude of the plane for one day with time on the horizontal axis and altitude on the vertical axis how many times will the graph touch the horizontol axis
1 answer
The graph will touch the horizontal axis a total of 5 times. This includes 2 stops on the way to New York, 1 stop on the way back to Chicago, and 2 endpoints where the plane takes off and lands.