|
Lesson 's Glossary:
Graph of a number: The location of a point paired with a number in the number line.
Graph of an ordered pair: The location in the coordinate plane associated with an ordered pair of real numbers.
Ordered pair: A pair of
numbers for which the order of the numbers is important; (2, -3) is
an ordered pair.
Ordinate: The y-coordinate in an ordered pair of the coordinate plane.
Origin: The location of the zero point in a number line.
Parallel lines: Lines in the
same plane that do not intersect; nonvertical lines that have the
same slope.
Perpendicular lines: Lines that intersect or cross at right angles. Multiplying the slopes of perpendicular lines always yield -1.
Plot a point: Locating and graphing an ordered pair of real numbers in the coordinate plane.
Slope of a line: The measure of how steep a line is. The change in y (rise) divided by the change in x (run).
Slope = m
x-intercept: The x-coordinate of a given point for which the graph intersects the x-axis.
y-intercept: The y-coordinate of a given point for which the graph intersects the y-axis.
|