anonymous
  • anonymous
Write the rule for the following arithmetic sequence: 1, -6, -13, -20,…
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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schrodinger
  • schrodinger
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DanJS
  • DanJS
arithmetic has a constant change between each term, here it is -7...
DanJS
  • DanJS
linear
DanJS
  • DanJS
you notice for any term, the next term is always 7 less than the previous

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DanJS
  • DanJS
then the first term is 1, so you want to start at that value...
DanJS
  • DanJS
a1, a2, a3, a4, …, an ; where a2 = a1 + d, a3 = a2 + d, and so on. The general form will be an = a1 + (n-1)*d
DanJS
  • DanJS
For any term n, the value is that, the first value + (n-1) times the constant value between terms, here d=-7
DanJS
  • DanJS
a1=1
DanJS
  • DanJS
you get all that or?
anonymous
  • anonymous
yes i did thank you.

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