so we look at the conditions if x<1 and if x≥1 x<1 means x is less than 1 x≥1 means x is greater than 1 including 1 that includes all real numbers so domain is all real numbers range is (sart with top and go up, if x=1 then f(1)=7 so from 7 to infinity, then other one, x<1, -inifinity to 4 not including 4 so the range with interval notation is (-∞,4) U [7,∞) graph is the graph of each, but pt together (see attachmetn)