1. 1.1 Real Numbers and the Coordinate Plane HW: Pg. 11# 1 – 14 (for 5 – 10 write them in interval notation as well) Pg. 21 # 7 – 10 Finish Sets of Numbers Worksheet (if needed) Complete Information Sheet

2. 1.1 Real Numbers and the Coordinate Plane Sets of Numbers Or you can think of this as a tree. Sets of Numbers

3. 1.1 Real Numbers and the Coordinate Plane Properties – Solve and state the property at each step:

4. 1.1 Real Numbers and the Coordinate Plane Inequalities Set Notation Examples Graph on the number line and write in set notation

5. 1.1 Real Numbers and the Coordinate Plane Absolute Value Definition – Formal If a is a real number, then the absolute value of a if given by: – Informal The distance from zero on the number line. Examples Write the expression without using absolute value notation