x^2 + 2x-3 should be greater than 0 since (Any number)/0 is NOt DefinedQuote:

I need to determine the domain, sketch the graph of each function and show/explain the connection between the graph and the domain:

g (x) = x^2

______________

x^2 + 2x - 3

(X+3)(X-1)>0

So either

X> -3 OR X>1

Thus domain becomes

(-3,1)u(1,Infinity)

Right?

Now how wld I graph and explain the connection??