**TI83F* AppVariable file 03/27/09, 16:33- GLPA08nav AEC13267AEFC43F88E67E1C0E88B5B83GLPA08.+GLPA081  arithmetic sequencearithmetic sequence:A numerical pattern that increases or decreases at a constant rate or value. The difference between successive terms of the sequence is constant. Example: 2, 5, 8, 11, 14 common differencebcommon difference:The difference between any two consecutive terms in an arithmetic sequence.  constant of variationGconstant of variation:The number k in an equation of the form y = kx. constant rate of change|constant rate of change:The rates of change between any two data points in a linear relationship are the same or constant. dependent variablemdependent variable:The variable in a relation whose value depends on the value of the independent variable. direct variation?direct variation:An equation of the form y = kx, where k  0.  discrete dataTdiscrete data:Data that can be described by whole numbers or fractional values.  family of functionsFfamily of functions:A set of functions that is related in some way.  function notationfunction notation:A way to name a function that is defined by an equation. Example: In function notation, the equation y = 3x - 8 is written as f(x) = 3x - 8.  independent variableSindependent variable:The variable in a function whose value is subject to choice.   line of fitIline of fit:It is a line that is very close to most of the data points.   linear equationmlinear equation:An equation in the form Ax + By = C, where A  0 and B  0, whose graph is a straight line.  linear relationshipElinear relationship:A relationship that has a straight-line graph. point-slope formpoint-slope form:An equation of the form y - y1 = m(x - x1), where m is the slope and (x1, y1) is a given point on a nonvertical line. rate of change3rate of change:The change in a quantity over time. sequence0sequence:A set of numbers in a specific order. slopey !slope:The ratio of the change in the y-coordinates (rise) to the corresponding change in the x-coordinates (run) as you move from one point to another along a line. slope-intercept formislope-intercept form:An equation of the form y = mx + b, where m is the slope and b is the y-intercept.  substitutionWsubstitution:Use algebraic methods to find an exact solution of a system of equations. system of equationsNsystem of equations:A set of two or more equations with the same variables. term!term:Each number in a sequence. vertical line testKvertical line test:A test used to determine if a relation is a function.  x-interceptGx-intercept:The x-coordinate at which a graph intersects the x-axis.  y-interceptEy-intercept:The y-coordinate at which a graph intersects the y-axis.8`@A@pC@@8@@@x@~@@)`p@IP@@IPx @FP`@@ꪪp@~H@H @HD@p@` @ @`A`A  @0@$C @C 0DG{D#|Gx@ꪪ@H#X@Hb `LU)p@JU)@@Jd@@ @cP@U`PS@ Q0@T