Graph the relation shown in the table. Is the relation a function? Why or why not?
(-1,3)
(-1,2)
(0,-4)
(4,2)
Yes; no horizontal line passes through two graphed points.
No; a horizontal line passes through two graphed points.
No; a vertical line passes through two graphed points.
Yes; no vertical line passes through two graphed points.
1 answer
Since there are multiple points with the same x-coordinate (-1), the relation represented by this table is not a function. Functions can only have one output for each input.
1 answer