1. If the graph of the function $y=f(x)$ passes through the point $(2,4)$, then the inverse function of $y=f(2-2x)$ must pass through the point
$-1 .(4,0)$.
Since $f(2)=4$, the function $y=f(2-2x)$ passes through the point $(0,4)$, so its inverse function passes through the point $(4,0)$.