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Answer 1 · 2017-05-20T16:22:39

See explanation.

To find the inverse function you can do the following:

The function you get in 2. is the inverse function.

Here we have:

#y=2^x - 3#

#2^x=y+3#

#x=log_2(y+3)#

Now we can change the letters #x# and #y# to get the function in the usual form with #x# as independent variable:

#y=log_2(x+3)#