Question $30(1$ point$)$

Estimate the instantaneous rate of change of $f(x)=\frac{x}{x-2}$ at $x=2.$

a$)\frac{f}{x}=20000$

b$)\frac{f}{x}=2$

c$)\frac{f}{x}=0$

d$)$ Impossible, the function is not continuous at $x=2.$