Unit 1 Help

How to find the Domain of a Function
http://www.youtube.com/watch?v=2tC36VPxCmw

How to find the Range of a Function
http://www.youtube.com/watch?v=4kCHuVrtbc4

About Function Notation
http://www.youtube.com/watch?v=uWKGVSpWcc8

Is it a function? The Vertical Line Test
http://www.youtube.com/watch?v=96VqHrvZdXw

How to Factor: Step 2, "Easy Case": x^2 + bx + c
How to Factor Quadratics - Part 2 - Easy Case

How to Factor: Step 3: "Decomposition" of ax^2 + bx + c
How to Factor (Decomposition)