sketch the inverse function given the sketch of the function (1 Viewer)

[whoisurdaddy]

How do u do it? :/

 

[tommykins]

Draw the line y = x and reflect f(x) in that line.

 

[SkimDawg]

On another but similar note, does y = tan^-1x ever have a domain, or is it always "all real x?"

 

[tommykins]

atanx is all real x unless the function is on a fraction (ie. atan(1/x))

 

[laureese]

sketch them all

.......then memorise them