Question

Which of the following sets represents a function?
Select one:
A. {(ordered pair one comma one), (ordered pair two comma one), (ordered pair three comma one), (ordered pair four comma one)}
B. {(ordered pair one comma one), (ordered pair one comma two), (ordered pair one comma three), (ordered pair one comma four)}
C. {(ordered pair one comma one), (ordered pair two comma one), (ordered pair two comma two), (ordered pair three comma one)}
D. {(ordered pair two comma one), (ordered pair two comma two), (ordered pair three comma two), (ordered pair four comma two)}

Answer 1

ordered pair (x,y0 - if there are 2 or more ordered pairs where there is a different 'y' value for the same 'x' value its is not a function

eg (1,2.) (2,2)(1.3) is not a function because of the (1,2) and (1,3)

Answer 2

* that's (x,y) not (x,y0

Answer 3

if you look at the second option - its not a function because it contains (one comma one and (one comma two)

Answer 4

which one does not contain this type of duplicate?