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Unit 4: Pre-Algebra (25 words)
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Gravity
Terms in this set (25)
Absolute Value
The distance of a number from zero on the number line. Always positive.
Algebraic Expression
A combination of variables, numbers, and at least one operation
Base
The number that is raised to a power
Coefficient
The number by which a variable is multiplied. Ex: the 2 in 2x
Coordinate Plane
This is formed when two number lines intersect at their zero points
Distributive Property
a(b +c) = ab + ac
Exponent
The number that tells how many factors there are of the base.
Greater Than
The inequality symbol >
Inequality
A mathematical sentence that compares two unequal expressions using one of the symbols <, >, ≤, ≥, or ≠.
Integers
Positive numbers, negative numbers, and zero
Less Than
The inequality symbol <
Like Terms
Terms containing the same variable
Negative Numbers
Numbers with a value less than zero
Operations
Addition, subtraction, multiplication, and division
Opposite Numbers
Numbers that have the same digit but opposite values. Ex: 3 and (-3)
Ordered Pair
This is used to name a point on the coordinate plane
Origin
The intersection of the x-axis and y-axis
Positive Numbers
Numbers with a value larger than zero
Powers
Numbers expressed using a base and an exponent
Quadrants
The four regions separated by the x-axis and the y-axis within a coordinate plane
Variable
A symbol, usually a letter, used to represent a number
X-Axis
The horizontal number line in the coordinate plane
X-Coordinate
The first number of the ordered pair
Y-Axis
The vertical number line in the coordinate plane
Y-Coordinate
The second number of the ordered pair
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