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#TSAMath6Unit7
Unit 7: Equations and Inequalities
| Term | Definition |
|---|---|
| > | greater than |
| < | less than |
| = | equal to |
| equation | a mathematical statement containing an equals sign, to show that two expressions are equal. |
| inequality | a mathematical statement containing a comparison symbol to show two expressions are not equal. |
| ≤ | less than or equal to, maximum, at most |
| ≥ | greater than or equal to, minimum, at least |
| solution | the answer to a problem |
| set | collection of items noted with curly braces { } , for example: the set of prime numbers under 20 = {2, 3, 5, 7, 11, 13, 17, 19} |
| solution set | a group of answers to a problem when there is more than one correct answer |
| solve | the process of determining the answer to a problem, specifically, an equation or inequality |
| evaluate | to find a numerical value to an expression, "work out" an expression |
| variable | a letter or symbol representing a varying quantity, for example, n in 10 + n. |
| constant | a quantity having a fixed value that does not change or vary, such as a number. |
| coefficient | a number which multiplies a variable |
| Inverse operation | opposite, reverse operations such as addition and subtraction, or multiplication and division. |