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anonymous

  • one year ago

What are the explicit equation and domain for an arithmetic sequence with a first term of 8 and a second term of 5?

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  1. anonymous
    • one year ago
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    is it multiple choice

  2. tkhunny
    • one year ago
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    We need a1 - The first term We need d - The common difference.

  3. anonymous
    • one year ago
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    @gabbimanges17

  4. anonymous
    • one year ago
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    an = 8 − 5(n − 1); all integers where n ≥ 1 an = 8 − 5(n − 1); all integers where n ≥ 0 an = 8 − 3(n − 1); all integers where n ≥ 1 an = 8 − 3(n − 1); all integers where n ≥ 0

  5. anonymous
    • one year ago
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    @_greatmath7

  6. tkhunny
    • one year ago
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    How much did the value change from the first value to the second value?

  7. anonymous
    • one year ago
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    -3

  8. anonymous
    • one year ago
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    First term = 8 Common difference = 5−8 = −3 an = 8 − 3(n − 1); all integers where n ≥ 1

  9. tkhunny
    • one year ago
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    Good. Throw out the two that say "-5".

  10. anonymous
    • one year ago
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    -5

  11. tkhunny
    • one year ago
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    That's right. Throw those out. The common difference is -3. A formula with "-5" can't do that. Scratch them out and never look at them again. Focus on the ones with "-3".

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