A plane travels 2,000 kilometers at a speed of 900 kilometers per hour (kph) with no wind. When a tailwind is present,
the plane's
speed increases by x kilometers per hour. The time it takes the plane to travel the same distance with the
tailwind. t(x). is defined by the function r(x)
2,000
900 +)
What is the meaning of the y-intercept for this function?
O the time it takes the plane to travel without the tailwind
• the speed of the plane when there is no tailwind present
O the minimum amount of time it takes the plane to travel 2,000 km
• the time it takes the plane to travel when the speed is decreased by 900 kph