Math Vocab.- Chp. 3 Go Math – Vocabulary List – Chapter 3

Term Definition
integers the set of whole numbers and their opposites
opposite integer two integers that are the same distance away from zero
positive integer integers to the right of zero on a number line
negative integer integers to the left of zero on a number line
rational number any number that can be written as a fraction; a/b when "b" is not equal to "0". Examples: Fractions, decimals, repeating decimals, integers, percents, are all rational numbers.
absolute value the distance a number is away from zero on a number line
coordinate plane the flat surface created by the x-axis and the y-axis lines
x-axis the horizontal line on the coordinate plane
y-axis the vertical line on the coordinate plane
origin the point where the x-axis and y-axis lines intersect
ordered pair a pair of coordinates that represent a point on the coordinate plane
coordinates numbers used to plot points on the coordinate plane
the 4 quadrants the four regions on the coordinate plane
line of symmetry a line that divides a figure into two halves that are a reflection of each other
reflection a point on the coordinate plane having the same location but in a different quadrant

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