New Symbols used in Chapter 4

Here are some new symbols that will be used throughout chapter 4. We will learn more about these symbols later on, but hopefully you will get the basic idea of what they mean from this post. 

(a,b)=Ordered Pair

x with a '1' underneath it= A specific value of the variable x(read as "x sub one")

m= Slope

f(x)= Function of x (read as "f of x")

*Sorry I wasn't sure how to make the "x sub one" symbol, but it's like an exponent underneath the 'x' instead of above it.