The set of points you provided, {(2, 3), (1, 3), (5, 3), (2, 6)}, represents a collection of four points in the coordinate plane. Each point consists of an x-coordinate and a corresponding y-coordinate.
(2, 3) means that the x-coordinate is 2, and the y-coordinate is 3.
(1, 3) means that the x-coordinate is 1, and the y-coordinate is 3.
(5, 3) means that the x-coordinate is 5, and the y-coordinate is 3.
(2, 6) means that the x-coordinate is 2, and the y-coordinate is 6.
These points do not represent functions on their own, but they can be used to define a relationship between x and y values. To determine a function, we need to ensure that each x-coordinate is associated with only one y-coordinate. If any x-coordinate is associated with multiple y-coordinates, it would not represent a function.
In this case, the x-coordinate 2 is associated with both y-coordinates 3 and 6. Therefore, the set of points {(2, 3), (1, 3), (5, 3), (2, 6)} does not represent a function since the x-coordinate 2 is paired with different y-coordinates.