Given f(x)=1xf(x) = \frac{1}{x}f(x)=x1, find the limit of the difference quotient limh→0f(2+h)−f(2)h\lim_{h \to 0} \frac{f(2+h) - f(2)}{h}limh→0hf(2+h)−f(2).
1/41/41/4
−1/4-1/4−1/4
1/21/21/2
−1/2-1/2−1/2