Example of function

From this graph, we can tell that the vertical line will only touches one point of the graph and hence it is qualified as a function

From this C-shaped graph, the vertical line will always touch 2 points of this graph and hence it is not qualified as a function because it has 2 possible output.

Great! You have just used the vertical line test to determine if the graph is a function. Question: What does a horizontal line test do?

ReplyDeleteinput?

ReplyDelete