**TI83F* AppVariable file 03/22/07, 09:45X GGLPA01GEnav AEC13267AEFC43F88E67E1C0E88B5B83GLPA01.GLPA011  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.  conjectureFconjecture:A conclusion reached that is based on inductive reasoning. coordinate plane!coordinate plane:A plane, also called a coordinate grid or coordinate system, in which a horizontal number line and a vertical number line intersect at their zero points. coordinate system!coordinate system:A plane, also called a coordinate grid or coordinate plane, in which a horizontal number line and a vertical number line intersect at their zero points. counterexample?counterexample:A specific case which proves a statement false. deductive reasoningodeductive reasoning:The process of using facts, rules, definitions, or properties to reach a valid conclusion. domainUdomain:The set of the first numbers or abscissas of the ordered pairs in a relation.  equationgequation:A mathematical sentence stating that two expressions are equal.Example: 3 (7 + 8) = 9 5  evaluate*evaluate:Find the value of an expression.  graphsgraph:To draw, or plot, the points named by certain numbers or ordered pairs on a number line or coordinate plane.  inductive reasoningAinductive reasoning:A conclusion based on a pattern of examples.  numerical expressionnumerical expression:A mathematical expression that has a combination of numbers and at least one operation.4 + 2 3 is a numerical expression.  open sentenceCopen sentence:A mathematical statement with one or more variables. 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.  ordered pairordered pair:A pair of numbers used to locate a point in the coordinate plane or the solution of an equation in two variables. An ordered pair is written in the form (x-coordinate, y-coordinate). originYorigin:The point (0, 0) in a coordinate plane where the x-axis and the y-axis intersect. property@property:A statement that is true for any numbers or variables. range of a relationRrange of a relation:The set of second numbers in the ordered pairs of a relation. relation!relation:A set of ordered pairs.  scatter plot!Sscatter plot:A graph that shows the general relationship between two sets of data. simplify/simplify:Write an expression in simplest form. 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 unspecified number or value. x-axis!9x-axis:The horizontal number line on a coordinate plane.  x-coordinate2x-coordinate:The first number in an ordered pair. y-axis!7y-axis:The vertical number line on a coordinate plane.  y-coordinate3y-coordinate:The second number in an ordered pair.8`HH>8p <<    0 x x 00xx0````<<``@@(<(<(>8` @H2"KQ)0"8Q$@JLb*@JTp@JT1R@@ @@ (@@(@ bۿD@@  @@$@%'T@%)T@'T@@@@@ @  @ @ @(2 @Q( @!Q$@!(*`baBhBE`dQ@@@ L!Ҕ@@ @@@T@"T0" IT@JLb JT@JTP JT@JTP1JT@1R @e