1. vocabulary word (put this word on the back of the card.) THIS WILL BE THE DEFINITION – FILL IN THE BLANKS ON THE VOCABULARY CARDS PROVIDED.

2. set A COLLECTION OF ITEMS.

3. element AN ITEM IN A SET.

4. subset A SET THAT IS CONTAINED ENTIRELY WITHIN ANOTHER SET.

5. empty set A SET WITH NO ELEMENTS.

6. finite set A SET WITH A DEFINITE, OR FINITE, NUMBER OF ELEMENTS.

7. infinite set A SET WITH AN UNLIMITED, OR INFINITE, NUMBER OF ELEMENTS.

8. natural numbers THE SET OF COUNTING NUMBERS. {1, 2, 3, 4,....}

9. whole numbers THE SET OF NATURAL NUMBERS AND ZERO. {0, 1, 2, 3, 4,... }

10. integer A MEMBER OF THE SET OF WHOLE NUMBERS AND THEIR OPPOSITES. {..... -4, -3, -2, -1, 0, 1, 2, 3, 4,.....}

11. rational number

12. irrational number A REAL NUMBER THAT CANNOT BE EXPRESSED AS THE RATIO OF TWO INTEGERS. EXAMPLE: 

13. real number A RATIONAL OR IRRATIONAL NUMBER.

14. function notation IF x IS THE INDEPENDENT VARIABLE, AND y IS THE DEPENDENT VARIABLE, THE FUNCTIONS NOTATION FOR Y IS f(x), READ f of x WHERE f NAMES THE FUNCTION.