The limit :limx->2 ( 3x – 9)/ x-2 represents the derivative of which function f at which x­-value?TAT 小的都没读懂题

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The limit :limx->2 ( 3x – 9)/ x-2 represents the derivative of which function f at which x­-value?
TAT 小的都没读懂题

代表的导数函数f的值在x­
limx->2 ( 3x – 9)/ x-2 =limx->2 3/ 1=3

x=3

x->2， 3x – 9->-3， x-2 ->0,
limx->2 ( 3x – 9)/ x-2不存在

3