Question

Choose whether the representation is or is not a function for the problem and select the reasoning for the answer.


Only one arrow is drawn from each x-value.
The ordered pairs of the function have more than one y-coordinate equal to 844.
function
All arrows are drawn to only one y-value.
The graph of the function does not pass the vertical line test.
not a function

Answer 1

Check the picture below.

keeping in mind that a function does not have any X-Repeats, that is, the 1st coordinate in every pair never repeats, so if we look at the set of those points, we don't have any X-repeats, so is a function, now, we can say well, hell is a horizontal line, well, pretty much, however it meets the criterion of a function.