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Published byShawn Clarke Modified over 9 years ago
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Chapter 1 Review
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Vocabulary Variable: a letter that is used to represent a range of numbers
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Variable Expressions, Meanings, and Operations
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You Try It… State the meaning of the variable expression and name the operation.
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Evaluating Variable Expressions Substitute numbers for the variable (letter) Perform the operations indicated Example: Evaluate the expression when x = 3
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PEMDAS Parenthesis Exponents Multiplication/Division – In order from left to right Addition/Subtraction – In order from left to right Order of Operations
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Example 1: Evaluate the expression. Use order of operations.
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Example 2: Evaluate the expression Use order of operations.
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Example 3: Evaluate the expression Then simplify your answer.
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You Try It... Evaluate each expression using the order of operations when x = 1.
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Example 4:
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You Try It… 1. 2.
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