The function f(x) is the cost of renting a boat where x represents the number of hours rented not to exceed 12 hours. Any portion of an hour is rounded up to the next whole hour.

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

Choices

{1, 2, 3, 4,5, 6, 7, 8, 9, 10, 11, 12}

all real numbers

[0,12]

[0,24]

awsometrunt14 Dec 20, 2018

#2**+2 **

Note that any portion of an hour is rounded up.....and we cannot exceed 12 hours

So.....we will only have positive whole numbers in the domain.....and the greatest will be 12

So.....the first answer is correct

Note that if we rent the boat for 3.5 hours....it puts 4 in the domain...etc.....

[ This is known as a "step" function ]

CPhill Dec 20, 2018