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### 18 Cards in this Set

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• Back
 additive inverse property For any number a, a + (-a) = 0. complex fraction If a fraction has one or more fractions in the numerator or denominator. cross products The cross products are the products of the terms on the diagonals. density property Between every pair of distinct rational numbers, ther are infinitely many rational numbers. formula An equation that states a rule for the realtionship between certain quantities. multiplicative property of -1 The product of any number and -1 is its additive inverse. -1(a)= -a and a(-1)= -a negative number Any number that is less than zero. number line A line with equal distances marked off to represent numbers. opposities The opposite of a number is its additive inverse perfect square A rational number whose square root is a rational number. real number The set of rational numbers and the set of irrational numbers together. unit cost The cost of one unit of something. coordinate The number that corresponds to a point on a number line. graph To draw, or plot, the points named by certain numbers or ordered pairs on a number line or coordinate plane. matrix A matrix is a rectangular arrangement of elements in rows and columns. square root One of two identical factors of a number solution set The set of all replacements for the variable in an open sentence that result in a true sentence. function A relationship between input and output in which the output depends on the input.