Chapter 4

This week in advanced math we were learning chapter 4 which isn't that hard. But you do need to know the steps and the different types of problems to use in order to succeed. You also need to know things like the line test to tell if a graph is a function or not. And you need to know how to find zeroes.

Horizontal line test

* The horizontal line test is used to tell if a graph is a function.

If you make a straight line going vertical and the vertical line touches the graphed line twice then it is not a funcion. In other words if X is repeated then it is not a function.

Ex: (3,3) (4,3) (5,3) and (6,3) are the points then this is a function because X doesn't repeat itself.

On the other hand (3,3) (4,3) (5,3) and (3,6) would not be a function because x repeats itself therefore it would not pass the vertical line test.