5 Classify each using symbols Z, Q, R1. -62. 03. ¾5. 16. πW, Z, Q, RQ, RQ, RN, W, Z, Q, RI, R
6 ASN (Always, Sometimes, Never) An integer is rational.A real number is a whole number.Π is irrational.A number can be both rational and irrational.A negative number is an integer.Non-terminating, repeating decimals are rational.AlwaysSometimesAlwaysNeverSometimesAlways
7 The Number LineCoordiante: Each point is paired with exactly one number.Graph: Each number is paired with exactly one point on the line.
8 Example ProblemExample: The coordinate of point P is -3 and the graph of -3 is point P.Find the coordinate of the point one third of the way from C to D for the number line shown.
9 Vocabulary Terms to know! Numerical Expression: a symbol or group of symbols used to represent a numberValue: the number represented by the expressionAlgebraic Expression: a numerical expression; a variable; sum/difference/product/quotient that contains one or more variablesEquation: a sentence formed by placing a equal sign between two expressions
10 What is the difference between an expression and an equation??
11 Vocab to know! Inequality symbols: >, <, ≠, ≤, ≥ Inequality: a sentence formed by placing an inequality symbol between two expressions
12 RECALL Sum: the result of adding numbers Difference: the result of subtracting numbersProduct: the result of multiplying numbersQuotient: the result of dividing numbers
13 RECALLAbsolute Value: the absolute value of a number is always positive (could be zero).Order of Operations: PEMDAS
14 Types of Grouping Symbols Parentheses ( )Brackets [ ]Bar (fraction bar) _____Complete the practice problems!