**TI83F* AppVariable file 03/21/07, 14:33_ NGLA201NLnav 26CE319875DD4F1B9DFDCB650E5220B1GLA201.GLA2011  absolute value¯absolute value:ÖThe absolute value of a number a is its distance from zero on a number line and is represented by | a |.ÖExample: The absolute value of -2 is 2, orÖ| -2 | = 2. algebraic expressionalgebraic expression:ÖAn expression consisting of one or more numbers and variables along with one or more arithmetic operations. binomialVbinomial:ÖAn algebraic expression that has two terms.ÖExamples:Öx + 1, x^2 + y, a - 2b  coefficient,coefficient:ÖThe numerical factor of a term. compound inequalityXcompound inequality:ÖTwo or more inequalities that are connected by the words AND or OR. constant2constant:ÖA term that does not contain a variable. degree of a monomialDdegree of a monomial:ÖThe sum of the exponents of all its variables. domainUdomain:ÖThe set of the first numbers or abscissas of the ordered pairs in a relation.   empty setwempty set:ÖA set with no elements shown by the symbol { } or É. A solution set with no members. Also called a null set.  equationfequation:ÖA mathematical sentence stating that two expressions are equal.ÖExample:Ö3 (7 + 8) = 9 5  formula›formula:ÖAn equation that states a rule for the relationship between certain quantities.ÖExample:ÖA = Är^2 is the formula for finding the area of a circle.   intersectionkintersection:ÖThe set of elements common to two or more sets as in compound inequalities and Venn diagrams.  irrational numbersoirrational numbers:ÖNumbers that cannot be expressed as fractions, terminating decimals, or repeating decimals.  like termsrlike terms:ÖTerms that contain the same variables raised to the same power.ÖExample: 5x^2 and 6x^2 are like terms. monomialomonomial:ÖA number, a variable, or a product of a number and one or more variables. ÖExamples: 3, y, 2x, 5xy^2.  open sentenceCopen sentence:ÖA mathematical statement with one or more variables. order of operationsØorder of operations:Ö1. Evaluate expressions inside grouping symbols.Ö2. Evaluate all powers.Ö3. Do all multiplications and/or divisions from left to right.Ö4. Do all additions and/or subtractions from left to right.  polynomialBpolynomial:ÖA monomial or sum of monomials.ÖExamples: 5x, 3x^2 + 2 powerpower:ÖAn expression of the form x^n, read x to the nth power. ÖExample: 7^4 is 7 raised to the fourth power, or 7 7 7 7. rational numbers˜rational numbers:ÖThe set of numbers that can be written in the form a/b, where a and b are integers and b  0.ÖExamples:Ö1 = 1/1, 2/9,Ö-2.3 = -2 3/10  real numbersJreal numbers:ÖThe set of rational numbers and irrational numbers together. set-builder notation•set-builder notation:ÖA concise way of writing a solution set.ÖExample: {t | t < 17} represents the set of all numbers t such that t is less than 17. solution£solution:ÖA replacement value for the variable in an open sentence. A value for the variable that makes an equation true.ÖExample: The solution of 12 = x + 7 is 5. term in an expression_term in an expression:ÖA number, a variable, or a product or quotient of numbers and variables.  trinomial[trinomial:ÖAn algebraic expression that has three terms.ÖExamples: x^2 + 2x + 1, Öa + b - c unionŠunion:ÖThe graph of a compound inequality containing the word 'or'; the solution is a solution of either inequality, not necessarily both. variableTvariable:ÖA letter or other symbol used to represent an unspecified number or value.¨à