The following tables, mappings, and sets are all examples of functions.

x
y
-2
-1
-1
1
0
3
1
5
2
7
{(-2, -5), (2, 7), (5, 16), (6, 19)} Map three different x values to two different y values.
Map four different x values to four different y values.
x
y
- 3
9
- 1
1
0
0
1
1
3
9
{(-3, -16), (1, 4), (2, 9), (3, 14)}

Now that you have studied examples of functions, use your notes to describe the similarities and differences of functions that are represented in the forms of tables, mappings, and sets.