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2 October, 21:40

Determine if the sequence is algebraic or geometric, and find the common difference or ratio.

x 1 2 3 4

f (x) 5 - 5 - 15 - 25

A. Algebraic, common difference = - 10

B. Algebraic, common difference = - 1

C. Geometric, common ratio = - 10

D. Geometric, common ration = - 1

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Answers (2)
  1. 2 October, 23:44
    0
    A. Algebraic, common difference = - 10

    Step-by-step explanation:

    The difference between the first two terms is - 10, as it is between the next two terms. The ratio of the first two terms is - 1; of the next pair: - 15/-5 = 3. There is a common difference, but not a common ratio.

    The sequence is algebraic with a common difference of - 10.
  2. 3 October, 01:25
    0
    Correct answer is A. Algebraic, common difference = - 10
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