Arthur drops a ball from a height of 81 feet above the ground. its height, h, is given by the equation h = –16t^2 + 81, where t is the time in seconds. for which interval of time is the height of the ball less than 17 feet?

Step-by-step explanation:

Arthur drops a ball from a height of 81 feet above the ground. Its height as a function of time is given by :

...........(1)

Where

t is in seconds

We need to find the time interval when the height of the ball is less than 17 feets. Equation (1) becomes :

When the time is more than 2 seconds, the height of the ball is less than 17 feet. Hence, this is the required solution.

domain is all the x values included in the

0 ≤ x ≤ 2

range is all the y values of the graph

-2 ≤ y ≤ 2

***keep in mind that there are different ways to show domain and range

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