Can some one please answer or help me try to learn how to asnwer this question? whats is the range of this function? f(x)=4x-2
the range is all the output values we can possibly attain, that is, the set of y values we can map to. this line can hit any y-value we want, it goes up towards infinity and down towards negative infinity, thus the range is $\displaystyle \mbox{Ran}(f) = (-\infty, \infty)$