Question

SOMONE PLEASE HELPNI ONLY RATE GOOD AND ITS IS AN EMERGENCY

Answer 1

Let's enumerate the number of times the plane is on the ground (that is, the graph touches the horizontal axis):

1 - At the start of the trip (Departure from Chicago)

2 - First stop on the way to New York

3 - Second stop on the way to New York

4 - Third stop on the way to New York

5 - Arrival in New York

6 - First stop on the way back to Chicago

7 - Arrival in Chicago.

So we have a total of 7 times when the graph touches the horizontal axis.