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# Math 8 Vocabulary

### Vocabulary Mixed Review

ratio the comparison of two values
proportion mathematical sentence in which two ratios are set equal to each other
similar in proportion
variable letter used to represent an unknown value
exponent number used to show how many times another number (base) is used to multiply by itself
coefficient integer or rational number that is multiplied by a variable
monomial number, a variable, or the product of a number and one or more variables
polynomial algebraic expression that is the sum or difference of terms
absolute value number of units (distance) from zero
congruent equal measures
vertical angles two non-adjacent angles formed from two intersecting lines, are opposite each other across a common vertex, are congruent to each other
corresponding angles a pair of non-adjacent angles, on the same side of the transversal line and in the same position (above or below) their parallel line
alternate interior angles a pair of non-adjacent angles, both inside a pair of parallel lines and on opposite sides of the transversal line, are congruent to each other
complementary angles two angles whose measures have a sum equal to 90 degrees
supplementary angles two angles whose measures have a sum equal to 180 degrees
multiplicative inverse reciprocal of a number
quadrant one-fourth of the coordinate plane
x-axis horizontal number line in coordinate plane
y-axis vertical number line in coordinate plane
domain input or x values
range output or y values
translation slide of a figure
rotation turn of a figure
reflection flip of a figure, produces a mirror image
dilation enlargement or shrinking of a figure
Created by: jslowinski