# Transparency 7 Click the mouse button or press the Space Bar to display the answers.

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Transparency 7 Click the mouse button or press the Space Bar to display the answers.

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Example 7-4b Objective Recognize and extend patterns for sequences

Example 7-4b Vocabulary Sequence An ordered list of numbers

Example 7-4b Vocabulary Term Each number in a sequence 8, 11, 14, 17, 20...

Example 7-4b Vocabulary Arithmetic sequence Each term is found by adding the same number to the previous term 8, 11, 14, 17, 20... 3 is added to each term to get the next term

Example 7-4b Vocabulary Geometric sequence Each term is found by multiplying the previous term by the same number 3, 6, 12, 24, 48... 2 is multiplied to each term to get the next term

Lesson 7 Contents Example 1Describe Patterns in Sequences Example 2Describe Patterns in Sequences Example 3Determine Terms in Sequences Example 4Determine Terms in Sequences

Example 7-1a Describe the pattern in the sequence and identify the sequence as arithmetic, geometric, or neither. 3, 6, 12, 24, … 3, 6, 12, 24, … Write problem 1/4 Determine how the series goes from the 3 to the 6 Remember: Sometimes there is more than one way Add 3 or Multiply by 2 Which pattern will get the 6 to 12?

Example 7-1a Describe the pattern in the sequence and identify the sequence as arithmetic, geometric, or neither. 3, 6, 12, 24, … 3, 6, 12, 24, … 1/4 Add 3 or Multiply by 2 Which pattern will get the 6 to 12? Does multiplying by 2 get the 12 to the 24? The pattern is multiplying by 2  

Example 7-1a Describe the pattern in the sequence and identify the sequence as arithmetic, geometric, or neither. 3, 6, 12, 24, … 3, 6, 12, 24, … 1/4 Add 3 or Multiply by 2 Name the sequence   Remember: Arithmetic is adding the same number Geometric is multiplying the same number Multiply by 2 Geometric Answer: Multiplying by 2 ; geometric

Example 7-1b Describe the pattern in the sequence and identify the sequence as arithmetic, geometric, or neither. 5, 9, 18, 22, 31, … Answer: Add 4, add 9; neither. 1/4

Example 7-2a Describe the pattern in the sequence and identify the sequence as arithmetic, geometric, or neither. 7, 11, 15, 19, … 7, 11, 15, 19, … 2/4 Write problem Determine how the series goes from the 7 to the 11 Remember: Sometimes there is more than one way Add 4 Determine how the series goes from the 11 to the 15 Add 4

Example 7-2a Describe the pattern in the sequence and identify the sequence as arithmetic, geometric, or neither. 7, 11, 15, 19, … 7, 11, 15, 19, … 2/4 Determine how the series goes from the 15 to the 19 Add 4 The pattern is adding 4 Pattern is adding the same number each time Now identify the pattern Arithmetic Answer: Add 4; Arithmetic sequence

Example 7-2b Describe the pattern in the sequence and identify the sequence as arithmetic, geometric, or neither. 3, 11, 19, 27, … Answer: Add 8; arithmetic. 2/4

Example 7-3a Write the next three terms of the sequence. 5, 14, 23, 32,... 5, 14, 23, 32, … 3/4 Write problem Determine how the series goes from the 5 to 14 Remember: Sometimes there is more than one way Add 9 Determine how the series goes from the 14 to 23 Add 9

Example 7-3a Write the next three terms of the sequence. 5, 14, 23, 32,... 5, 14, 23, 32, … 3/4 Determine how the series goes from the 23 to 32 Add 9 Use the pattern of adding 9 to determine the next three terms Add 9 to 32 Add 9 to 41 Add 9 to 50 Answer: 41, 50, and 59.

Example 7-3b Write the next three terms of the sequence. 12, 17, 22, 27, … Answer: 32, 37, 42 3/4

Example 7-4a Write the next three terms of the sequence. 0.2, 1.2, 7.2, 43.2, … 0.2, 1.2, 7.2, 43.2, 4/4 66 Write problem Determine how the series goes from the 0.2 to 1.2 Remember: Sometimes there is more than one way Add 1 and multiply 6 Determine how the series goes from the 1.2 to 7.2 Adding 1 does not work Multiply by 6 does work 66

Example 7-4a Write the next three terms of the sequence. 0.2, 1.2, 7.2, 43.2, … 0.2, 1.2, 7.2, 43.2, 4/4 66 Determine how the series goes from the 7.2 to 43.2 Multiply by 6 66 66 Use the pattern of multiplying by 6 to determine the next three terms Multiply 43.2 by 6 Multiply 259.2 by 6 Multiply 1,555.2 by 6 9,331.2 Answer: 259.2, 1,555.2, and 9,331.2

Example 7-4b Write the next three terms of the sequence. 3, 12, 48, 192, … Answer: 768, 3,072, 12,288 * 4/4

End of Lesson 7 Assignment Lesson 1:7Sequences4 - 24 All

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