Ch 1 Vocabulary
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21 terms
Terms | Definitions |
|---|---|
 Absolute Value | The distance a number is from zero on a number line |
| Additive Inverse | Two integers that are the opposite of each other. The sum of any number and its additive inverse is zero. |
| Algebraic Expression | A combination of variables, numbers and at least one operation. |
| Conjecture | An educated guess. |
| Coordinate | A number associated with a point on a number line. |
| Counter Example | A statement or example that shows a conjecture is false. |
| Defining a Variable | Choosing a variable and a quantity for the variable to represent in an expression or an equation. |
| Equation | A mathematical sentence that contains an equals sign, = |
| Inequality | A mathematical sentence that contains <,>, "not equal to" sign, "greater than or equal to" sign, or "less than or equal to" sign. |
| Integers | The set of whole numbers and their opposites. |
| Inverse Operations | Pairs of operations that undo each other. |
| Negative Number | A number that is less than zero. |
| Numerical Expression | A mathematical expression that has a combination of numbers and at least one operation. |
| Open Sentence | An equation that contains a variable. |
| Opposites | Two numbers with the same absolute value but different signs. The sum of opposites is zero. |
| Order of Operations | The rules to follow when more than one operation is used in an expression. |
| Powers | Numbers written using exponents. Powers represent repeated multiplications. |
| Property | An open sentence that is true for any numbers. |
| Solution | The value for the variable that makes an equation true. |
| Solve | To find the value of a variable that makes a solution true. |
| Variable | A symbol, usually a letter, used to represent a number in mathematical expressions or sentences. |
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