(I) draw an image with the function y=f(x)

(ii) If the inequality f (x)

(1) Analysis: ∵ Function f(x)=|2x-4|+ 1

When x

When x & gt=2, f(x)=2x-3.

Its image is U-shaped, and the coordinates of its lower cusp are (2, 1).

(2) analysis: according to the image of function y=f(x) and function y=ax, if and only if the slope of straight line y=ax is a >；; = 1/2 or a