This week in math we learned about functions and how they work.
If we ever wanted to check to see if it is a function or not you can use the vertical line test. If there is more than one point on the line then it is not a function but if there is only one on each line then, it is a function
A function is when an input has only one output just like the one below.
We know that this is a function because the x column, which is also the input, has only one number and same with the y column, the output.
An example of something that is not a function would be this because 7 is in the output twice and the outputs are different for both of them.