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UNIT 6 VOCABULARY By: Marissa Constant Term A value of something that does not change. Example: A is always A. Division of fractions property The principle that states that dividing fractions is equal to a multiplication problem by the fractions reciprocal. Example: 9/10 divided by 4/10 is the same as 9/10 multiplied by 10/4. Equation An equation is a number sentence that is finished by an equal sign. Example: 9+9=18 Equivalent equations Equivalent equations are equations that have the same solution. Example: 9+a=10 8+a=9 Inequality A number sentence with greater or less than signs. Example: 9>3 Integers A whole number or a negative whole number. Example: -4,4 Multiplication property of -1 A property of multiplication that says multiplying the number besides 1, the answer will be the opposite of that number. Example: 5*(-1) = -5 Nested parentheses A set of parentheses that are inside another set. Example:(9+(3+3))=15 Open sentence A number sentence which holds one or more variables. Example: 8+m=20 Opposite of a number The opposite of a number is either a positive or negative with the same number. Example: Opposite of 27 is (-27). Order of operations Rules that say where to put operations and in what order. Example: Multiply and divide in order from left to right. Reciprocal Reciprocals are two fractions whose product is one. Example: The reciprocal of 3/5 is 5/3. Relation symbol Symbols used to show the difference between two quantities. Example: “<“ means less than. Repeating decimals Repeating decimals are numbers after the decimal point that go continually with the same number. Example: 0.77777777777777777777777….. Solution The solution is a part to figure out an equation. Example: A solution could be the number four. Solution set A set of all the solutions together from equations or inequality. Example: The solution set of x squared=9 is 3 or (3). Terminating decimals A decimal that eventually ends. Example: 0.5 is a terminating decimal. Trial and error method Finding the solution of an equation by testing out test numbers. Example: This is a method. Variable A variable is a way of using letters to replace or stand for a number. Example: x is seven.