**TI83F* AppVariable file 03/21/07, 14:34 GLA202nav 26CE319875DD4F1B9DFDCB650E5220B1GLA202.GLA2021  absolute value functionbabsolute value function:A function written as f(x) = | x |, where f(x)  0 for all values of x. boundaryKboundary:A line or curve that separates the coordinate plane into regions. Cartesian coordinate planeU!Cartesian coordinate plane:A plane divided into four quadrants by the intersection of the x-axis and the y-axis at the origin. constant function:constant function:A linear function of the form f(x) = b. continuous functioncontinuous function:A function is said to be continuous at point (x1, y1) if it is defined at that point and passes through that point without a break. dependent variableldependent variable:The variable in a relation whose value depends on the value of the independent variable. domainUdomain:The set of the first numbers or abscissas of the ordered pairs in a relation. family of graphsafamily of graphs:Graphs and equations of graphs that have at least one characteristic in common.  functionifunction:A relation in which exactly one element of the range is paired with each element of the domain.  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.  greatest integer functiongreatest integer function:A step function written as f(x) = x]], where f(x) is the greatest integer less than or equal to x.  independent variableRindependent variable:The variable in a function whose value is subject to choice.  linear equationllinear equation:An equation in the form Ax + By = C, where A  0 and B  0, whose graph is a straight line. linear functionlinear function:A function in which the graph of the solutions forms a line defined by y = mx + b where m and b are real numbers. mapping>!jmapping:A diagram that illustrates how each element of the domain is paired with an element in the range. negative correlationEnegative correlation:In a scatter plot, as x increases, y decreases.  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).  parent graphSparent graph:The simplest of the graphs or the anchor graph in a family of graphs. piecewise functionkpiecewise function:A function in which different equations are used for different intervals of the domain. 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. positive correlationEpositive correlation:In a scatter plot, as x increases, y increases. prediction equationpprediction equation:An equation suggested by the points of a scatter plot that is used to predict other points. quadrantU!Zquadrant:One of four regions into which the x- and y-axes separate the coordinate plane.  range of a relationRrange of a relation:The set of second numbers in the ordered pairs of a relation. rate of change3rate of change:The change in a quantity over time. relation!relation:A set of ordered pairs.  scatter plot!Rscatter plot:A graph that shows the general relationship between two sets of data slope!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. "standard form of a linear equationstandard form of a linear equation:A linear equation of the form Ax + By = C, where A  0, and A and B are real numbers and not both zero.  step functionWstep function:A function whose graph is a series of disjointed steps or line segments.  vertical line testIvertical line test:A test used to determine if a relation is a function.!  x-interceptEx-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` @H2"KQ)0"8Q$@JLb*@JTp@JT1R@@ @@ (@@(@ bۿD@@  @@$@%'T@%)T@'T@@@@@ @  @ @ @(2 @Q( @!Q$@!(*`baBhBE`dQ@@@ L!Ҕ@@ @@@T@"T0" IT@JLb JT@JTP JT@JTP1JT@1R @8`! q !p 0 < p80 < 0 p R 2 c @yXf@ @ @ Fe  0      0 43"#FR!RlER J`5*I@ J2a0  ! 0! ys 0$\$1̀@&JI*,%JQ*0@u2\@8@ `P S`U@pS0 8`HH>8p <<    0 x x 00xx0````<<``@@(<(<(>8`P  P>@ @  @   @@@`  !  @@@p @ @1 @@@x @@09H IH 0=@@@   @  @ @>5