The equation given, y = 40, represents the relationship between the variables in this scenario. In this case, 'y' typically represents the distance traveled by the car, and '40' represents the speed of the car, which is 40 miles per hour.
When Deb graphed the equation y = 40, she noticed that the point (3, 120) was on the line. This point represents a specific coordinate on the graph where the car has traveled for 3 hours at a speed of 40 miles per hour.
To interpret the point (3, 120) on the graph:
1. The '3' in the point (3, 120) represents the time in hours that the car has been traveling.
2. The '120' in the point (3, 120) represents the distance the car has traveled in miles after 3 hours at a speed of 40 miles per hour.
Therefore, the point (3, 120) on the graph represents the location where the car has traveled 120 miles after 3 hours of traveling at a constant speed of 40 miles per hour. It shows the relationship between time, distance, and speed in this specific situation.
