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SarahDavis PrCalc1.1

SarahDavis rectangular coordinates & graphing utilities

x-axis horizontal number line in a coordinate plane
y-axis vertical number line in a coordinate plane
origin point of intersection of the x- and y-axes in a coordinate plane
rectangular coordinate system Cartesian coordinate system
x-y plane plane formed by the x- and y-axes
coordinate axes the x- and y-axes
to plot to place a dot at the location of a point
abscissa the x-coordinate
x-coordinate the signed distance of point P from the y-axis
ordinate the y-coordinate
y-coordinate the signed distance of point P from the x-axis
quadrant one of the four sections into which a coordinate plane is divided
pixel one of the small rectangles into which a screen is divided
setting the range (on a calculator) setting the scale on each axis and including the smallest and largest values of x and y to be shown in the WINDOW or viewing rectangle
time series data data in which a variable is measured at different points in time. It is represented graphically by line graphs
relation a correspondence between 2 variables, and can be written as an ordered pair
scatter diagram the graph resulting from plotting ordered pairs in a Cartesian coordiante system
distance formula sqroot[(x2-x1)^2 + (y2-y1)^2]
midpoint formula the ordered pair obtained by averaging the x-coordinates and the y-coordinates of the endpoints ((x1+x2)/2, (y1+y2)/2)
Created by: DDavis