| A | B |
| variable | a symbol that stands for a number |
| variable expression | a mathematical phrase, without an equal sign, with a variable |
| absolute value | a numbers distance from zero |
| opposites | numbers the same distance from zero |
| evaluate | to replace a variable with a number and simplify (2 parts) |
| integers | all whole numbers and their opposites |
| order of operations | PEMDAS |
| inductive reasoning | making a conclusion based on patterns you observe |
| conjecture | a conclusion by inductive reasoning |
| counterexample | an example that proves a statement false |
| coordinate plane | formed by the intersection of two number lines |
| x-axis | the horizontal number line of the coordinate plane |
| y-axis | the vertical number line of the coordinate plane |
| quadrants | the four sections of the coordinate plane |
| origin | where the x-axis and y-axis intersect |
| ordered pair | made up of a x-coordinate and a y-coordinate |