Question 474616

D) f(x) = x/2x  - 8 is a function whose domain and range are all nonzero real numbers

{{{f(x) = x/2x-8=cross(x)/2cross(x) -8=1/2-8=1/2-16/2=-15/2=-7(1/2)}}}; so, whatever you take for value of {{{x}}} it will cancel each other in nominator and denominator