 Find the next three terms in each sequence:  5, 15, 45, 135, ___, _, _  0.5, 2, 8, 32, _, _, _  -32, 16, -8, 4, _, ___,

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Presentation transcript:

 Find the next three terms in each sequence:  5, 15, 45, 135, _____, _____, _____  0.5, 2, 8, 32, _____, _____, _____  -32, 16, -8, 4, _____, _____, _____

Section 11-3

 A sequence is a list of numbers in a particular order.  Each number in a sequence is called a term.  A geometric sequence is when each term is found by multiplying the previous term by a constant (called the common ratio).

 a n = nth term  a 1 = first term  r = common ratio  n is any positive integer

 Find the indicated term of the geometric sequence with

 Write an equation for the nth term of the geometric sequence 64, 16, 4, …

 Write an equation for the nth term of the geometric sequence 4, -12, 36, …

 The missing term(s) between two non- successive terms of a geometric sequence are called geometric means.

 Find three geometric means between 3.12 and 49.92

 Find three geometric means between 4 and 324

 Page 591 #13-45 odd