Question

The relation {(1, 0), (4, 0), (2, 1), (0, 0)} is a function. True or False?

Answer 1

Well a function has to pass the vertical line test to be a function

Answer 2

So do any of the parts of the function have an x value that gives 2 y values, if so then it is not a function

Answer 3

2 or more y values rather

Answer 4

Are these points?

Answer 5

if these are points than it is a function

Answer 6

if it is domains then we cannot comment on it being a function because we dont know the ranges

Answer 7

then*

Answer 8

gimme a minute to catch up . . .

Answer 9

Ok, what's the issue? Determining if something is a function?
If a particullr x values shows up more than once with a different y value, then not a function, otherwise it's fine.