What is the inverse of $f(x)=4-5x$?
\(f(x) = y = -5x + 4\)
\(y - 4 = -5x\)
\(\frac{4 - y}{5} = x\)
---> \(\boxed{f^{-1}(x) = \frac{4 - x}{5}}\)
Hello, I haven't seen you on in a long time. :))
=^._.^=
replace f(x) with x
x = 4 - 5f(x)
4-x = 5f(x)
f(x) = (4-x)/5
+1223 
