Which of the tables represents a function?

Table A
Input Output
8 −9
8 −8
10 −8
Table B
Input Output
4 11
7 12
7 13
Table C
Input Output
−4 0
−3 3
−2 5
Table D
Input Output
10 0
10 4
3 7

Table A
Table B
Table C
Table D

Question

Which of the tables represents a function?


Table A
Input	Output
8	−9
8	−8
10	−8
Table B
Input	Output
4	11
7	12
7	13
Table C
Input	Output
−4	0
−3	3
−2	5
Table D
Input	Output
10	0
10	4
3	7








 Table A
 Table B
 Table C
 Table D

anonymous · Answer

please help me im desperate!!!!

anonymous · Answer

@jdoe0001 @Nnesha

anonymous · Answer

C

nnesha · Answer

x values shouldn't repeat

nnesha · Answer

if there are same x values more than once then that tables doesn't represent a  function

anonymous · Answer

ok so is it c?

jdoe0001 · Answer

x = input

as Nnesha  said, the table that has no repeated inputs

anonymous · Answer

so it is c right?

anonymous · Answer

can you guys please help me with one more?

nnesha · Answer

so why is it C ?
:-) bec.........?

anonymous · Answer

because it doesnt reapeat inputs

nnesha · Answer

gO_Od job! :-)
:D

anonymous · Answer

thank you so much can you help me with one more?

nnesha · Answer

i'll try :-)

anonymous · Answer

Which of the sets of ordered pairs represents a function? 

A = {(1, −2), (3, −5), (5, 2), (7, 5)} 

B = {(4, 2), (4, −2), (9, 3), (9, −3)}

 Only A
 Only B
 Both A and B
 Neither A nor B

nnesha · Answer

same 
in order pair first number is x and 2nd one y
(x,y)
 x values shouldn't repeat!

anonymous · Answer

so it would be only a?

nnesha · Answer

yep :-)

anonymous · Answer

@Nnesha ca you help me with some more please i am having a lot of trouble and i need to finish this tonight.

nnesha · Answer

i have to go fr nw 
i'll be back :-)