trig

j12:

If f(x)=5-2x find f^-1(3)

This doesn't make sense, not to me anyway, and why have you called it Trig. It is not a trig question.

plug in -1(3) into the equation where x is to solve

Melody:

j12:

If f(x)=5-2x find f^-1(3)

This doesn't make sense, not to me anyway, and why have you called it Trig. It is not a trig question.

Bug's answer will give you the answer to
f(-(3)) which is really f(-3)
Is that what you wanted?

Hi Bug,
I don't think that I have seen you about before,
Welcome to web2.0calc forum!