1. By Nat, Grade 11 Pre-Calculus

2. What is a rational number?

3. A rational zero is a solution to a polynomial that is rational. What is a rational zero?

4. You can use the Rational Zero Test! How do you find them?

5. The Rational Zero Test

6. Example 1 : Getting Started

7. To determine the actual real zeros of an equation, you must try out all the possible zeros and see if they yield a “0 (zero)” as an answer. Determining the Actual Real Zeros

8. Example 2 : Moving On

13. Example 2 : Finishing

14. Extra Practice!

15. If the divisor of a synthetically divided equation is positive and every number in the last row is positive, then this is the upper bound. Example: Bounds!!!

16. If the divisor of a synthetically divided equation is negative and the numbers in the last row have alternating signs ( +, -), then this is the lower bound. Example: Bounds!!!

17. Doyle, Matt. "Synthetic Division Solver." Matt Doyle :: Welcome. Web. 11 Dec. 2011.. Hungerford, Thomas W., Irene Jovell, and Betty Mayberry. "Chapter 4: Polynomial and Rational Functions." Precalculus: a Graphing Approach. Austin: Holt, Rinehart and Winston, 2006. Print. Mr. Scott O’Brady’s Lectures (Precalculus) Bibliography

18. For watching!!!