Question

Which of the following graphs show a function which is one-to-one?

Answer 1

@AZ

Answer 2

@snowflake0531

Answer 3

so remember that vertical and horizontal line tests that I've been speaking about?

Answer 4

yep

Answer 5

D and B?

Answer 6

I can't really tell what D is and what B is

Answer 7

but remember, if you can draw a straight line (a horizontal line) through a graph- then it is NOT a one-to-one function

Answer 8

so for example

Answer 9

This is NOT a one-to-one function

Answer 10

But it IS a function because if you draw a vertical line, it doesn't touch that line twice