Question

The table shows data collected to represent the functional relationship between the number of people attending a wedding and the cost of the wedding.

What is the domain of the function represented by the table?
All real numbers
x≥0
All integers greater than or equal to zero
{5, 10, 15, 20, 25}

Answer 1

x ≥ 0

Explanation:

The independent variable here is the number of people attending the wedding. Theoretically there can never be fewer than zero people, and the size of the event may be limited by the facilities, ability to feed the guests, and so on. Thus the domain of this function is "all integers zero or greater."

Symbolically, x ≥ 0.

Answer 2

C

Explanation:

the answer is C