Question 1166999
When input and output are switched for that kind of parabola, domain and range are then switched.  You then will have, as inverse, two different functions.


You can begin by {{{x=(y-3)^2-5}}}
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{{{x+5=(y-3)^2^2}}}
{{{y-3=0+- sqrt(x+5)}}}


One part of the inverse is {{{y=3+sqrt(x+5)}}}  and other part of inverse is {{{y=3-sqrt(x+5)}}}.