Answer:
[see below]
Step-by-step explanation:
A function is a relation where one domain value is assigned to exactly one range.
An x-value in a function must not repeat.
- One way to see if a graph is a function is to use a vertical line test. If the line passes trough the line twice, then it is not a function.
- On a table, check the x-value column or row. If any of the numbers repeat, then it is not a function.
- On a mathematical map, check to see if the arrows from a domain number points to one range value on the other side. If it points to two range numbers, then it is not a function.
Hope this helps.
