Question #9416d

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Question #9416d

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Answer 1 · 2016-09-27T15:24:37

We know that the values of #f(x)# are real numbers for
#f(x) = Log_a ( x - k)# where #k# constant, if argument of #log# is positive.
#(x-k)>0#
#=>x>k#

Inserting given numbers we get domain of
#log(x-7)# in inequality form as
#x>7#
In interval form as
#(7 , + oo)#

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Question #9416d

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