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Algebra II question please help?

What is the recursive rule for the sequence: -7.4, -21.2, -35, -48.8, -62.6....?

a) an = an + 1 + 13.8

b) an = an + 1 -13.8

c) an = an - 1 -13.8

d) an = an - 1 + 13.8

I chose D

Update:

oops sorry C is the one i chose am I right?

2 Answers

Relevance
  • ?
    Lv 7
    8 years ago
    Favorite Answer

    a(n) = a(n-1) - 13.8

    m05192013

  • Zyzzyx
    Lv 7
    8 years ago

    My calculator thinks it's

    0 - 13.8

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