| Term | Definition |
|---|
| Variable | A letter or symbol used to represent a number that may change. |
| Constant | A value that does not change. Constants are usually numbers in math. |
| Operations | addition, subtraction, multiplication, division |
| Expression | A collection of variables and/or constants linked by operations. Ex: 2+2, 3x, 2x - 7 |
| Terms of an expression | The variable and or constant parts of an expression separated by a + or - sign. Ex: The terms of 2x - 7 are 2x and -7. |
| Variable Term | A term that contains a variable. |
| Constant Term | A term that is constant. (usually a number) |
| Like terms | terms that contain the same variables with the same exponents (constants are also like terms). |
| Combine like terms | to add or subtract like terms. Ex: 3x and- 5x combine to become -2x. |
| To Simplify | An expression is simplified if there are no parentheses, all like terms are combined, the expression is written in alphabetical order and listed from highest to lowest exponent. |
| Coefficient of a variable term | The coefficient answers the question, "how many of the variable are there?" It is the number to the left of and multiplied by the variable. Ex: The coefficient of -4x is -4. |
| Equation | A statement that two expressions are equal. 2 + 2 = 4 |
| Solution to an equation | the number/s that make the equation true when substituted in for the variables in the equation. |
| To solve an equation | To find the solution/s of an equation. |
| Inverse Operations | The inverse of + is -, the inverse of * is รท |
| Graph of an inequality. | A picture that represents ALL of the inequality's solutions |
| Absolute Value | A number's or expression's distance from zero |
Combine with other sets
Share on Facebook
Share on MySpace