Is it a Function

This Equation is a function because there is no repetition in the domain, however it is not a one to one function because there is repetition in the range.

Range and Domain

In the domain X belongs to the set of all real numbers Because the graph goes on forever and never ends.

In the Range Y is less than or equal to 0, because the height of the graph never exceeds 0 while it goes on forever.

Domain means all the possible values of X, or all the numbers X could be

Range means all the possible Y values, or all the numbers that Y can be.

Self assessment

I used the same mathematical idea in multiple ways when I reexplained the definition of domain and Range.

I used mathematical vocabulary to explain what I meant by using the words Domain and Range.

I used formatting to show my understanding in a clear and presentable way by keeping my equation organized and easy to read