Answer:

Step-by-step explanation:


Answer:
they might be since they could be like 16 and if it was raised they couldn't drive any more
Answer:
Yes.
Step-by-step explanation:
It is a function because it passes the vertical line test. Each x-value has just one y-value. If the relation had any x-values that had several y-values, it would just be a relation. But this one is a function.
Hope this helps!