Which relation does not represent a function?
Answer

(-4, 2), (1, 5), (-4, 0), (5, 6)

(2, 0), (4, 8), (6, 5), (10, 5)

(-7, 3), (-3, 1), (1, -4), (5, -6)

(-3, 6), (-1, 1), (0, 4), (3, 7)

Question

Which relation does not represent a function?
Answer
		
(-4, 2), (1, 5), (-4, 0), (5, 6)
		
(2, 0), (4, 8), (6, 5), (10, 5)
		
(-7, 3), (-3, 1), (1, -4), (5, -6)
		
(-3, 6), (-1, 1), (0, 4), (3, 7)

anonymous · Answer

the one where there is a repetition in the first coordinate

anonymous · Answer

a i think as its many to one

anonymous · Answer

??

amistre64 · Answer

its easier to read f you stack them

(-4, 2),  <<< |
(1, 5),            |  Both of these have a -4 leading to different results
(-4, 0),  <<< |
(5, 6)

amistre64 · Answer

*if you

amistre64 · Answer

a function is useful in that it will give a unique output for a given input:

in this case, we input -4; and we have 0 and 2 as output.  So its not a function