Splash Screen. Example 1 Describe and Extend Sequences Describe the relationship between the terms in the arithmetic sequence 7, 11, 15, 19, … Then write.

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Presentation transcript:

Splash Screen

Example 1 Describe and Extend Sequences Describe the relationship between the terms in the arithmetic sequence 7, 11, 15, 19, … Then write the next three terms in the sequence. Each term is found by adding 4 to the previous term. Continue the pattern to find the next three terms. Answer: The next three terms are 23, 27, and = = = , 11, 15, 19 +4

1.A 2.B 3.C 4.D Example 1 A.add 9; 55, 64, 53 B.add 11; 57, 68, 79 C.add 13; 59, 72, 85 D.add 15; 61, 76, 91 Describe the relationship between the terms in the arithmetic sequence 13, 24, 35, 46, … Then write the next three terms in the sequence.

Example 2 Describe and Extend Sequences Describe the relationship between the terms in the arithmetic sequence 0.1, 0.5, 0.9, 1.3, … Then write the next three terms in the sequence. Each term is found by adding 0.4 to the previous term. Continue the pattern to find the next three terms. Answer: The next three terms are 1.7, 2.1, = = = 2.5 Animation: Arithmetic Sequences , 0.5, 0.9,

1.A 2.B 3.C 4.D Example 2 A.add 0.3; 3.6, 3.9, 4.2 B.add 0.5; 3.8, 4.3, 4.8 C.add 0.8; 4.1, 4.9, 5.7 D.add 0.9; 4.2, 5.1, 6.0 Describe the relationship between the terms in the arithmetic sequence 0.6, 1.5, 2.4, 3.3, … Then write the next three terms in the sequence.

Example 3 EXERCISE Mehmet started a new exercise routine. The first day, he did 2 sit-ups. Each day after that, he did 2 more sit-ups than the previous day. If he continues this pattern, how many sit-ups will he do on the tenth day? Make a table to display the sequence.

Example 3 Each term is 2 times its position number. So, the expression is 2n. 2nWrite the expression. 2(10) = 20Replace n with 10. Answer: So, on the tenth day, Mehmet will do 20 sit-ups.

1.A 2.B 3.C 4.D Example 3 A.8n; 120 seats B.8 + n; 23 seats C.15n; 120 seats D.15 + n; 23 seats CONCERTS The first row of a theater has 8 seats. Each additional row has eight more seats than the previous row. If this pattern continues, what algebraic expression can be used to find the number of seats in the 15th row? How many seats will be in the 15th row?

End of the Lesson