What is the inverse of #y = log_2(x-10)# ?
1 Answer
Jan 17, 2016
#f^-1(x) = 2^x + 10 #
Explanation:
To find the inverse , change the subject of the formula to x .
ie
# log_2 (x - 10 ) = y# using :
# log_b a = n rArr a = b^n # then :
# (x - 10 ) = 2^y rArr x = 2^y + 10 #
