Is the relation a function?{(1,5),(1,7),(3,9),(4,11)}

No

Step-by-step explanation: Multiple Y values come from the same X value, which means its not a function.

No

Step-by-step explanation:

Determining whether a relation is a function on a graph is relatively easy by using the vertical line test. If a vertical line crosses the relation on the graph only once in all locations, the relation is a function. However, if a vertical line crosses the relation more than once, the relation is not a function.

1,918

step-by-step explanation:

25% is the answer