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)
