PLEASE HELP Determine which relation is a function.
2 answers:
Answer:
Option D.
Step-by-step explanation:
A relation is called a function if there exist a unique output for each input.
Vertical line test : The graph of a function intersect each vertical line almost once.
If the graph passes vertical line test, then it is a function otherwise it is not a function.
From the given graphs it is clear that graph first three graphs intersect the vertical line more than once, therefore they are not functions.
Last graph passes the vertical line test, therefore it is a function.
Hence, the correct option is D.
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We are given that:
The skateboard park is located at the point (-3,5),
the ice cream shop is located at the point (-3,6),
and the comic book store is located at (4,6).
We are also given that the four coordinates forms a rectangle.
Here we already have two matching x- coordinates as -3 and y coordinates as 6.
Now we must have two matching x and y coordinates too.
As shown in figure , if we have the last coordinate as (4,5), it will complete the rectangle.
So answer is option B) (4,5) is the last coordinate at which his best friend lives.
