Question

The function g(x) is the height of a football x seconds after it is thrown in the air. The football reaches its maximum height of 30 feet in 4 seconds, and hits the ground at 10 seconds.

What is the practical domain for the function f(x)

Write your answer in interval notation.

Answer 1

[0,10]

Explanation:

The domain unit is seconds.

Time can't be negative so x is greater than or equal to zero.

The time here stops after 10 seconds. So our domain is

Since time will start at 0 and end at 10,we use a bracket.

[0,10]