The given table shows the total cost of admittance to a basketball game, y, for x students. x y 5 25 dollars 10 50 dollars 15 75 dollars 20 100 dollars Which explains how the table can be used to predict the cost of any number of students attending the game?
Answer
A
The table is a complete representation of the data set. To determine the cost of any number of students, find the number of students in the y -column.
B
The table is a complete representation of the data set. To determine the cost of any number of students, find the number of students in the x -column.
C
The table is a partial representation of a larger data set. It can be used to generate a graph that is a complete representation of the data set.
D
The table is a partial representation of a larger data set. It can be used to generate an equation that is a complete representation of the data set.
Explanation
The table lists costs for only four numbers of students, so it is a partial representation of the data. Each cost is $5 per student: for example, 25 ÷ 5 = 5 and 100 ÷ 20 = 5. The equation y = 5x describes the cost for any number of students, so choice D is correct.
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