\text { Determine } D_{h} \text { if } h(x)=\frac{x+5}{x^{2}+x-6} \text { Consider: } f(x)=\frac{x-3}{x^{2}-9} 1 Give the domain of f(x). 2 Test all the conditions of continuity to determine whether the given function is continuous or discontinuous at the point x = 3.