Thread: Help with sketching functions

Does anyone know how to sketch these?

y=x+1/x-3

y=x^2-1/x^2-4

y=x^2-1/x-4

Originally Posted by D7236

Does anyone know how to sketch these?
y=x+1/x-3
y=x^2-1/x^2-4
y=x^2-1/x-4

"Sketch" means what: graph ?

Brackets required; like y = (x+1) / (x-3) ?