| A | B |
|---|
| variable | symbol, usually a letter, that represents one or more numbers |
| equation | mathematical sentence that uses an equal sign. |
| Please excuse my dear Aunt Sally | phrase that helps you remember the order of operations |
| the one that comes first in the problem | In order of operations, does multiplication or division come first |
| imaginary | numbers that don't exist |
| real numbers | numbers that are either rational or irrational, but not imaginary |
| rational numbers | numbers that can be written as a fraction |
| irrational numbers | numbers that can't be written as fractions, ex. Pi - 3.14..... |
| Integers | whole numbers and their opposites |
| whole numbers | 0, 1, 2, 3 ...... |
| natural numbers | 1, 2, 3 ..... |
| absolute value | a number's distance from zero |
| origin | point where the x and y axes intersect each other |
| positive | type of correlation when bot sets of data increase together |
| negative | type of correlation when one set of data decreases as the other set increases |
