**TI83F* AppVariable file 04/07/08, 20:20I 8 MC3018 6 nav C06F6135E12F4E7A9D8857C241FE0BEFMC301.MC3011  absolute valueabsolute value:The absolute value of a number a is its distance from zero on a number line and is represented by | a |.Example:The absolute value of -2 is 2, or | -2 | = 2. additive inverseadditive inverse:A number that when added to a given number results in a sum of zero.Example:The additive inverse of 4 is -4 because 4 + (-4) = 0. algebrapalgebra:A mathematical language that uses symbols, usually letters that stand for unknowns, along with numbers. algebraic expressionalgebraic expression:An expression consisting of one or more numbers and variables along with one or more arithmetic operations.  coordinateDcoordinate:The number that corresponds to a point on a number line. counterexample?counterexample:A specific case which proves a statement false. define a variableadefining the variable:Choosing a variable to represent the input when writing a function rule.  equationgequation:A mathematical sentence stating that two expressions are equal.Example: 3 (7 + 8) = 9 6  evaluate*evaluate:Find the value of an expression.   inequalityZinequality:An open sentence that uses the symbol<, , >, or  to compare two quantities.  integersSintegers:The set of whole numbers and their opposites{..., -2, -1, 0, 1, 2, ...}.  inverse operationsinverse operations:Pairs of operations that undo each other.Examples:Addition and subtraction are inverse operations. Multiplication and division are inverse operations.  negative number3negative number:Any number that is less than zero. numerical expressionnumerical expression:A mathematical expression that has a combination of numbers and at least one operation.4 + 2 3 is a numerical expression.  opposites@opposites:Every positive rational number and its negative pair. order of operationsorder of operations:1. Evaluate expressions inside grouping symbols.2. Evaluate all powers.3. Do all multiplications and/or divisions from left to right.4. Do all additions and/or subtractions from left to right. powerpower:An expression of the form x^n, read x to the nth power. Example: 7^4 is 7 raised to the fourth power, or 7 7 7 7. property@property:A statement that is true for any numbers or variables. solutionsolution:A replacement value for the variable in an open sentence. A value for the variable that makes an equation true.Example: The solution of 12 = x + 7 is 5. solve an equationlsolve an equation:The process of finding all values of the variable that make an equation a true statement. variableTvariable:A letter or other symbol used to represent an unspecifiednumber or value.