10
QuizMultiple Choice

Using Function Notation — Quiz

Question 10 • Mathematics 8

The table shows data collected to represent the functional relationship between the number of hours an auto factory is open and the number of cars produced. Hours, x Cars, y 3 75 5 125 7 175 9 225 11 275 What is the domain of the function represented by the table?

Answer
A
{3, 5, 7, 9, 11}
B
{75, 125, 175, 225, 275}
C
x is greater than or equal to 0
D
all real numbers

Explanation

The domain is the set of input values, which are the hours the factory is open (the x-values). From the table, those values are 3, 5, 7, 9, and 11, so the domain is {3, 5, 7, 9, 11}.

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