Question

A plane travels 2,000 kilometers at a 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 t(x)= 2,000/900+x. What is the meaning of the y-intercept for this function?

Answer 1

The y-intercept of the function t(x) is about 2.222 hours, representing the time it takes the plane to travel 2,000 kilometers at a speed of 900 km/h with no wind.

Step-by-step explanation:

The y-intercept of the function t(x) = 2,000/(900 + x) represents the time it takes the plane to travel 2,000 kilometers with no tailwind, as the y-intercept is the value of t(x) when x is 0. This y-intercept can be found by plugging 0 into the function, resulting in t(0) = 2,000/900. The y-intercept is therefore approximately 2.222 hours, which means that when there is no tailwind (x=0), the plane takes roughly 2.222 hours to cover the distance of 2,000 kilometers.

Answer 2

i think it is a in edge

Step-by-step explanation: