Thanks!!
Looking for a quick way to find f^-1(#) if asked to do so.
yes, , right?
so they ask you to find , you don't know what it is, so equate it to a variable. this variable can be anything, but i chose because the answer will be an -value
So let
So now we need to know what has to be so that , that is, the correspoding y-value for , is 2