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Thread: Line of best fit

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    Line of best fit

    Hi.

    Should the line of best fit extend across the whole graph paper, or should it stop at the x coordinates of the endpoints?

    Thanks
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    Re: Line of best fit

    Quote Originally Posted by Cryptical View Post
    Hi.

    Should the line of best fit extend across the whole graph paper, or should it stop at the x coordinates of the endpoints?

    Thanks
    Stop at the x coordinates of endpoints but I think if it asks you to extrapolate then you can extend it!
    Fizzy_Cyst, Cryptical and supR like this.
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    Re: Line of best fit

    Thank you very much!
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    Re: Line of best fit

    Quote Originally Posted by Cryptical View Post
    Hi.

    Should the line of best fit extend across the whole graph paper, or should it stop at the x coordinates of the endpoints?

    Thanks
    To be honest, I have seen both. I usually stop at x-coordinates though to be on the safe side but I have only seen in one instance in a trial paper it had the marking guidlines as would loose a mark for not extrapolating line of best fit. I'm sure the question had mentioned it though or something along those lines so +1 pikachu just stop at x-coordinates and only extrapolate if necessary
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