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Go Math Integers Chapter Three Vocabulary The set of whole numbers and their opposites; including 0 Examples: -2, -7, 0, 10, 3 Two numbers are opposites if they are the same distance from 0 on the number line but on different sides of 0. +3 and -3 are opposites; zero is its own opposite. Opposites Any number that can be written as Rational Number 𝑎 𝑏 Where a and b are integers and b ≠0 Decimals, fractions, and integers are rational numbers. Absolute Value The distance from 0 on a number line (how many jumps from zero; direction does not matter). The absolute value of -3 and +3 are both 3 Sixth Grade Coordinate Plane x-axis, yaxis, origin, quadrants Coordinate Plane formed by a horizontal number line called the x-axis that intersects a vertical number line called the y-axis. The axes intersect at 0 on both number lines and that point where they intersect is called the origin. The four sections of the plane are separated by Ordered Pair Ordered pair is a pair of numbers, such as (3, 5) that can be used to locate a x-coordinate, point on the coordinate plane. The first y-coordinate number is the x-coordinate; it tells the distance to move from left or right from the origin. The second number is the ycoordinate; it tells the distance to move up or down from the origin. The ordered pair for the origin is (0, 0). (x, y) (3, 5) Line Symmetry A figure has line symmetry if it can be folded about a line so that its two parts match exactly. Line of Symmetry A line that divides a figure into two halves that are reflections of each other. Sixth Grade Coordinate Plane (-,+) (+,+) (+,-) (-,-) Sixth Grade