The function f(x) is the cost of renting a car where x represents the number of miles driven.

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

all whole numbers

all integers

all positive real numbers

all real numbers

The domain of this function are all possible values that x can take. If we are talking about the number of miles traveled, these can be as many as the client travels (20.5, 670.23, etc), or zero, if not traveled any. But x can never be less than zero, since it would be absurd for a customer to have traveled -20 miles, for example. Therefore x can take any positive value. The domain of the function is

x> 0

The correct option is the third: All positive real numbers

The function ​f(x)​ is the cost of renting a car where x represents the number of miles driven. What is the practical domain for the function f(x)? all whole numbers all integers all positive real numbers all real numbers

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The function f(x) is the cost of renting a car where x represents the number of miles driven.

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

all whole numbers

all integers

all positive real numbers

all real numbers