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itsmichelle29

  • one year ago

What is the common difference for the sequence shown below? coordinate plane showing the points 3, 4; 1, 3; and negative 1, 2 −2 −one half one half 2

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  1. SolomonZelman
    • one year ago
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    For coordinates (x,y) it is equivalent of \(a_x=y\)

  2. itsmichelle29
    • one year ago
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    what does common differnce mean ??

  3. SolomonZelman
    • one year ago
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    Common difference, in arithmetic sequence, is the number that you add (or subtract) to get to the next term

  4. SolomonZelman
    • one year ago
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    this number is denoted with letter d.

  5. itsmichelle29
    • one year ago
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    okay thanks

  6. SolomonZelman
    • one year ago
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    wow, you are very smart! genius! \(a_3=4\) \(a_1=3\) \(a_n=a_1+d(n-1)\) \(a_3=a_1+d(3-1)\) \(a_3=a_1+2d\) \(4=3+2d\) \(1=2d\) \(d=1/2\)

  7. itsmichelle29
    • one year ago
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    Lol u make me feel so much better about my math .. Thanks

  8. SolomonZelman
    • one year ago
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    You should feel better about your math. I rarely meet people who catch things so quickly.

  9. SolomonZelman
    • one year ago
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    you are always welcome!

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