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.
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