Math Functions | MathHelp.com - By MathHelp.com
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| 00:0-1 | Here were asked if the following relation represents a function | |
| 00:06 | 1 , -5 , 0 0 -3 , 4 and | |
| 00:11 | 12 . The easiest way to tell whether or not | |
| 00:16 | a relation represents a function is to take a look | |
| 00:21 | at the X coordinate of each ordered pair . If | |
| 00:26 | any of our ordered pairs have the same X coordinate | |
| 00:31 | , then the relation is not a function . And | |
| 00:35 | notice that in this problem two of our ordered pairs | |
| 00:39 | have the same X coordinate of one . Therefore this | |
| 00:45 | relation is not a function , so the answer to | |
| 00:49 | the question is no . Yes . The definition of | |
| 00:58 | a function states that each X must be paired with | |
| 01:03 | exactly 11 and we can see that in this relation | |
| 01:08 | we have an X . One That is being paired | |
| 01:13 | with two different wise , therefore this relation cannot be | |
| 01:18 | a function . |
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