Question

Is the following relation a function? Yes No

Answer 1

Answer:

no

Step-by-step explanation:

Answer 2

Answer:

No

Step-by-step explanation:

The vertical line test can be used to decide whether a relation is a function. If you draw a vertical line x = a, the line will intersect the graph of the relation twice for all a > 0. This just means that there are values of x where there is more than one y value, so this is not a function.