Term | Definition |
Variable | A symbol, usually a letter, that represents one or more numbers |
Coefficient | The number that is multiplied by the variable in an algebraic expression |
Expression | A mathematical phrase containing numbers, operations, and/or variables |
Constant Term | A term that has a number but no variable |
Evaluate (an algebraic expression) | Substitute a number for each variable in an algebraic expression. Then use the order of operations to find the value of the numerical expression |
Substitute | to replace a variable with a number or another expression in an algebraic expression |
Equation | A mathematical sentence that uses an equal sign, =, to show that two expressions are equal |
Solve | to find an answer or solution |
Solution of an Equation | A value that makes an equation true |
Inverse Operation | Operations that “undo” each other, such as addition and subtraction or multiplication and division |
Isolate the Variable | to get a variable alone on one side of an equation or inequality in order to solve equation or inequality |
Term | the parts of an expression that are added together |
Like Term | Terms that have identical variable parts |
Equivalent Expression | Expressions with the same value |
Simplify | to write a fraction or expression in simplest form |
Distributive Property | To multiply a sum or difference by a number, multiply each number in the sum or difference by the number outside the parentheses. Then evaluate. |
Order of Operations | The order in which to perform operations when evaluating expressions with more than one operation |
Ordered Pair | A pair of numbers (x, y) used to locate a point in a coordinate plane. The first number is the x-coordinate, and the second number is the y-coordinate |
Integer | The set of whole numbers and their opposites |
Opposite | two numbers that are an equal distance from zero on a number line |
Absolute Value | The distance between a number and 0 on a number line. The absolute value of a number a is written as |a|.1 |