Last week in math we looked at functions. We learned that they are a very special relationship. For example; “a function is like a marriage because you have one spouse and only one, and a friendship is like a relation because you can have more than one friend.” Like how an input has one output.

FUNCTIONS;

In the first example on the table of values there is an example of a function, due to the input having one individual output if the 2 for example had a partner of 2 and 5 than that would make the expression a relation. In the second example the 1 (input) had an output of 4 & 5 which made the expression a relation. In the last example graphs are shown on how relations and functions are graphed. The function has a perfectly diagonal line which is not necessary, but 2 points that are equal to each cannot be perfectly vertical.