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    GreatPegasus305's Avatar
    GreatPegasus305 Posts: 1, Reputation: 1
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    #1

    Apr 12, 2016, 07:15 AM
    What formula generates the pairs (20,20), (40,40), (60,80), (80,160), (100,320)?
    What formula generates the pairs (20,20), (40,40), (60,80), (80,160), (100,320)?
    ebaines's Avatar
    ebaines Posts: 12,131, Reputation: 1307
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    #2

    Apr 12, 2016, 08:41 AM
    Hint - note that the y-value doubles for each increment in the x-value. This tells you that the formula is of the form 2^x, with appropriate scaling factors. Starting with this, can you now develop a formula that matches these points? Post back with your attempt and we'll help if you are still stuck.

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