Answer
Please see image
Work Step by Step
Sketching a graph y=f(x):
1. Select several x-values from the domain of f, and calculate f(x) for each x-value.
(Make a table of function values)
2. Plot the points (x,f(x)) obtained.
3. Join the points with a smooth curve.
$\displaystyle \frac{1}{x}$ is defined for $x\neq 0$