In math, a function is a set of ordered pairs in which each element of the first set (the domain) corresponds to exactly one element of the second set (the range).
This table shows a function because each day of the week (the domain) corresponds to a specific number of children in the car (the range). For example, on Monday there were 4 children in the car, and no other day corresponds to that same number. This means that each element of the domain corresponds to exactly one element of the range, satisfying the definition of a function.
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?
1 answer