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how/when to know to use a curve or a line on a line graph? Watch

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    (Original post by sixthformer)
    ty
    Fit that one that best explains the points. If it is obviously a curvy relationship between two factors then fit a curve. As far as I remember I mostly fitted best fit lines in biology A level. If it asks for a best-fit line then it probably means a straight line. Hope that helps :-)
 
 
 
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