Functions Unit Test

Question

15 of 1515 of 15 Items

Question
Use the table to answer the question.

Day of the Week Number of Children in the Car
Sunday 2
Monday 4
Tuesday 4
Wednesday 3
Thursday 4
Friday 3
Saturday 0
Describe the meaning of the word function in math. Then consider the table. Why does this table show a function?

(2 points)
The meaning of function in math is a mathematical rule that assigns exactly one output to each imput written as y=f(x)

How or why does this table show a function? Because each


Math Short Answer Rubric (2 points)
Points Awarded Criteria
2
The answer is correct. The student made no errors while solving.

The answer shows that the student used problem-solving skills and reasoning.

All work is shown or explained.

1
The answer is partially correct. The student made errors while solving.

The answer shows little problem-solving skills or reasoning.

Some work is shown or explained.

0 The question is not answered.


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Answer 1

The table shows a function because each day of the week is paired with a unique number of children in the car. For example, Sunday is always paired with 2 children in the car, Monday is always paired with 4 children in the car, and so on. This demonstrates the mathematical rule that assigns exactly one output (number of children in the car) to each input (day of the week), which is the defining characteristic of a function in math.