How far and in what direction should a cellist move her finger to adjust a string's tone from an out of tune?

I

idk

New member
449 Hz to an in-tune 440 Hz? The string is 68.0 cm in length and the finger is 20.0 cm from the nut for the 449 Hz tone. Now I really don't understand what's going on and can someone also explain why ?1 f1 = ?2 f2
 
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