How to set domain for p(x)/q(x) functions?

My function is x-1/x-2 how can I plot this?

Answer 1

[Star Strider]

Your function has a singularity at ‘x=2’. If you simply want to plot it, this works:

x = linspace(0, 4, 250);
f = @(x) (x-1)./(x-2);

figure
plot(x, f(x))
grid

Answer 2

[Basil C.]

You could just use this simple code instead

 syms x
 y=(x-1)/(x-2)
 ezplot(y)