Question

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

Answer 1

The tailwind speed

Explanation:

Based off of the equation given, x represents tailwind. the linear function format is y = mx + b, so tailwind is your y-intercept.

Answer 2

Answer: A

the time it takes the plane to travel without the tailwind

Explanation: