Weekly Blog Post #10 Function Notation

Function notation is when you get the x or y value of a graph and you have to use it to find the other value, it can also be used to turn a y value equation into an x value equation for example if y = f(x) and the equation is y = 0.5x – 0.25 it can be turned into f(x) = 0.5 – 0.25

In this graph 0.7 = 2.7, 1.8 = 3.2, and 2.6 = 0.8

Weekly Blog Post #9 functions and relations

If you have two circles and one of them has the father in it and the other has the two children in it the connection between the father and the children would be a relation because the father has two people that he is connecting to, but the connection between the two children to their father would be a function because they both only have one father

                                    Weekly Blog Post #8 domain and range

When righting the domain and range of a graph you have to put the lowest x value is less than or equal x and that the greatest x value is greater than or equal to x. you do the same thing for the range but it has a y value instead of an x value. If one of the lines has an arrow on it that means that it goes infinitely in that direction when this happens you put an ER instead of a value

in this picture the domain is 0 ≤ x ≤ ER

And the range is ER ≤ y ≤ 0