What we learned this week builds on my last blogpost as this one uses the last method within it. Last week we would used a different function (y) it can be mixed up so pay attention, to represent the outputs and range of the relation, but in this week we use f(x)= to represent the function instead. To use function you basically just input your numerical x value anywhere in the equation where x is already then you solve. Using function notation you can find lines and unknown co-ordinates because of the input abilities. Down below I have shown you how to use function notation to input plots on a graph, and the difference between function notation and x-y notation.