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OpenStudy (nuccioreggie):
Which of the tables represents a function?
Table A
Input Output
7 2
8 1
5 6
Table B
Input Output
5 2
3 5
5 6
Table C
Input Output
1 2
1 9
7 3
Table D
Input Output
2 6
6 7
6 2
Table A
Table B
Table C
Table D
OpenStudy (nuccioreggie):
@freckles
OpenStudy (nuccioreggie):
@ganeshie8
OpenStudy (nuccioreggie):
@mathmath333
OpenStudy (nuccioreggie):
@NotTim
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OpenStudy (nuccioreggie):
@prowrestler
OpenStudy (nuccioreggie):
explain please
OpenStudy (jchick):
Do you know how to check them?
OpenStudy (nuccioreggie):
yes but i think its Table b but im not sure
OpenStudy (jchick):
Ok can you explain why you think it is B?
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OpenStudy (jchick):
Remember that when we are looking to see if it is a function that there must not be any repeat numbers on the input side.
OpenStudy (jchick):
every x has to only have one y to go with it. You can't have one x have two y's
OpenStudy (jchick):
Does this help? What are you thinking about your answers now?
OpenStudy (jchick):
So because I have explained why I will give you the answer it is Table A.
OpenStudy (jchick):
Because all of the other tables have more than one y without having more than one x