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1-1 Patterns and Expressions

1-1 Patterns and Expressions. Identifying Patterns. Patterns can be represented using words, diagrams, numbers, or algebraic expressions. What is the next figure?. Look at the figures from right to left. What is the pattern?. Try this on your own. Draw the next figure. Numerical Pattern.

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1-1 Patterns and Expressions

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  1. 1-1 Patterns and Expressions Algebra 2

  2. Identifying Patterns Patterns can be represented using words, diagrams, numbers, or algebraic expressions. What is the next figure? Algebra 2

  3. Look at the figures from right to left.What is the pattern? Algebra 2

  4. Try this on your own. Draw the next figure. Algebra 2

  5. Numerical Pattern What is the next number in the pattern 2, 4, 6, 8, …. 6, 3, 0, -3, …. Algebra 2

  6. Variable- a symbol, usually a letter that represents one or more numbers ex: x or n Numerical Expression- mathematical phrase that contains numbers and operation symbols. ex: 3+5 Algebraic Expressions- mathematical phrase that contains one or more variables ex: 3n+5 Algebra 2

  7. Using Tables to help identify patterns Algebra 2

  8. Algebra 2

  9. Expressing a Pattern with Algebra How many toothpicks are in the 20th figure? Algebra 2

  10. Patterns on Graphs The graph shows the cost depending on the number of DVDs that you purchase. What is the cost of purchasing 5 DVD’s? 10 DVD’s? Algebra 2

  11. Section 1-1 Overview • Patterns- look at the figures or numbers from left to right and identify the pattern. • Variables are used in math to represent an unknown number in equations and inequalities. • Using Input/Output tables can help you find patterns. Algebra 2

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