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Pre Algebra Chapter 2 Glencoe
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Terms in this set (12)
absolute value
The distance a number is from zero on a number line
The distance a number is from zero on a number line. ALWAYS POSITIVE
additive inverse
The opposite of a number
-5 + 5 = 0
(mathematics) one of a pair of numbers whose sum is zero
coordinate
a number that identifies a position relative to an axis
Ordered pairs that identify points on a coordinate plane. (x,y)
inductive reasoning
A method of reasoning in which a number of specific facts or examples are used to make a generalization.
Decision making process in which ideas are processed from the specific to the general.
inequality
A statement that compares two quantities using <, >, ≤,≥, or ≠
A mathematical sentence that compares expressions
integer
All numbers that are negative, positive, non-fractional, and non-decimal
negative number
a number less than zero
Any number that has a minus sign (-) and is smaller than zero
opposites
two numbers that have the same absolute value but have different signs
Equal distance, but different directions from 0 on the number line
example: 4 and -4 9 and -9
positive number
a number greater than zero
A number greater than zero. Numbers to the right or above zero on a number line.
quadrants
Four regions into which a coordinate plane is divided by the x-axis and the y-axis
the four sections of a coordinate plane labeled counterclockwise I, II, III, IV
average
the sum of data divided by the number of items in the dataset, also called mean.
mean
the sum of data divided by the number of items in the dataset, also called average.
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