Question Number 129028 by oustmuchiya@gmail.com last updated on 12/Jan/21
$${Find}\:{gradient}\:{of}\:{the}\:{curve}\:{y}=\frac{\mathrm{1}}{{x}−\mathrm{1}} \\ $$
Commented by liberty last updated on 12/Jan/21
$$\mathrm{m}\:=\:−\frac{\mathrm{1}}{\left(\mathrm{x}−\mathrm{1}\right)^{\mathrm{2}} } \\ $$