3 ms·

Because 0°C is not 0°F

• deleted 6y ago
  [deleted]
• SahAssar 6y ago
  As I understood it: C to K would be linear since they are always offset by the same amount, but 0°C is not 0°K. C to F is not linear since they are not offset by the same amount.
  • _0ffh 6y ago
    It seems to me C to K is affine as well. True, it's somewhat special in that the factor is exactly one, but if there's an offset it's not linear in the sense of the sentence under discussion.
  • dhosek 6y ago
    That's not how it works. The definition of linear used in this context requires f(a+b) = f(a) + f(b) which is not the case with the C to K translation which is f(x) = x + 273.15 Only functions in the form y=mx+0 meet the criteria.