Question

Find the domain and range, and compare it with the function y=1/x

Answer 1

F(x) = 1/x and g(x) = -10/x

Domain:  same:  all real numbers other than x=0.
Range:  strictly speaking, these 2 functions have the same range:  all real numbers other than y=0.  But the graph of g(x) = -10/x looks stretched vertically when compared with that of f(x) = 1/x.