Question

A store sells self-serve frozen yogurt sundaes the function C(w) represents the cost, in dollars, of a sundae weighing w ounces. An appropriate domain for the function would be

A. Integers
B. Rational numbers
C. nonnegative integers
D. nonnegative rational numbers

Answer 1

The domain would be ur w values....the weight in ounces. So the weight would have to be positive numbers because it is not gonna weigh negative. And it would not necessarily have to be a whole number...because the sundae could weight 2.5 oz......so ur answer is : non-negative rational number

Answer 2

D.Non negtaive rational numbers.

Explanation:

Given

A store sells self serve frozen yogurt and weight of yogurt taken in ounces.

The function C(w) represents the cost , in dollars .

The given yogurt can be measured in gram or kilogram or ounces etc.

The quantity of yogurt can not be negative because quantity is always a positive number . So it can not be a negative number

The quantity is defined as the amount of any material or substance .

The quantity is always a positive number . It can not be negative value of a number.

Here, the quantity is taken in ounces so it is a positive number .

The quantity of any material can be natural number or positive rational number .

Hence,the domain for the function C(w) are non negative rational numbers.

An appropriate domain for the function would be non negtaive rational numbers .

Therefore, the correct answer is option D.