Inversing a quadratic

[cooldog182]

I'm sorry if this is too simple, but yet again it has stumped me

I am trying to find the inverse function of

f(x)=((6/4)x^2) - ((11/2)x)+6

i.e f(x)^-1

Thanks if you are able to give me any insight

 

[stapel]

Replace "f(x)" with "y". Solve the resulting equation for "x=" (by using the Quadratic Formula).

Note: Unless there is some restriction on f(x) which was not included in your post, the result of the above will not be a function, due to the "plus-minus" from the Formula.

Eliz.

 

[cooldog182]

yeah, see this is where i've been getting stuck.

there are no restrictions and so the plus minus is sqrt(-5.75) which doesn't sound too happy