Given the function (x-2)/(x^2-3x+2), graph, find range, and discountinuity, homework help

Given the function (x-2)/(x^2-3x+2), graph, find range, and discountinuity, homework help

1. Graph the following function    (x-2) / (x^2-3x+2)

-labeled, showing, asymptotes, etc.  

2.  Apply the definition of continuity to identify any points of discontinuity, showing all work.

-The points of discontinuity are   x=1 and x=2. Use the formal definition of continuity to verify that discontinuities occur at these points.

3. Find the range of the function SHOWING ALL WORK.

-the range is y not equal to 0 and 1, please show work in how it equals 0 and 1.