Question 668788
y = {{{(sqrt(x+4))/(x^2 - 2x - 3)}}}
...
{{{x^2 - 2x - 3}}}
Undefined where the denominatore = 0
(x-3)(x+1) = 0
x = 3
x = -1
...
x intercepts at {{{sqrt(x+4)}}} = 0
0 = {{{sqrt(x+4)}}}
{{{0^2 = sqrt(x+4)^2}}}
0 = x+4
x = -4
...
x intercept at (-4,0)
domain (-{{{infinity}}}, -1) U (-1, 3) U (3, {{{infinity}}})
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