The zeroes (where the line crosses the x-axis, these are also the solutions) and the vertex (the highest or lowest point)
The small plane has the following parameters
Distance = 1200 miles
Speed = 300miles/hour
time = ?

If a Boeing 747 leaves 2 hours later, the total time becomes 4hours + 2 hours = 6 hours
Considering the distance of the small plane after 6 hours, we have

So the total distance = 1800 miles
Hence the speed of the Boeing 747 will be


The average speed of the Boeing 747 is 900 miles/ hour
Answer:
45 degrees
Step-by-step explanation:
45 is half of 90, 90 is a right angle