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Thread: plotting a number on a new scale: 10 = 100 9 = 93 8 = 86 7 = 79 6 = 72 5= 65

  1. #1
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    plotting a number on a new scale: 10 = 100 9 = 93 8 = 86 7 = 79 6 = 72 5= 65

    I have a series of numbers between 5 and 10. I want to plot them on a new scale from 65-100 (yes a grade). I'm doing this in excel. Can someone help me with a formula?

    Here's roughly how things should work out but I'd like a formula to automate it as there are going to be decimals involved.

    10 = 100
    9 = 93
    8 = 86
    7 = 79
    6 = 72
    5= 65

    Thanks!

  2. #2
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    Quote Originally Posted by td3201 View Post
    I have a series of numbers between 5 and 10. I want to plot them on a new scale from 65-100 (yes a grade). I'm doing this in excel. Can someone help me with a formula?

    Here's roughly how things should work out but I'd like a formula to automate it as there are going to be decimals involved.

    10 = 100
    9 = 93
    8 = 86
    7 = 79
    6 = 72
    5= 65

    Thanks!
    Plot it in x-y plane - and you'll see the relationship! Make the domain [5,10] and range [100,65]
    Last edited by Subhotosh Khan; 11-26-2017 at 08:03 AM.
    “... mathematics is only the art of saying the same thing in different words” - B. Russell

  3. #3
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    Here's the excel formula:

    =(((G2-5))*(100-65)/((1*10)-5))+65

    G2 = the value you're evaluating
    5 = bottom of that number's range
    10 = top of that number's range
    100 = top of new range
    65 = bottom of new range

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