to find discontinuities take denominator = 0
...............discontinuities of function
as we can see here (x+3) factor can be cancel out
so x=-3 is removable Discontinuity (at point x=-3 there is a hole)
and x=-4 is non removable Discontinuity
.
cancel the factor (x+3)
to find vertical asymptote take denominator = 0
................ vertical asymptote
.
.
here degree of denominator and numerator are equal so horizontal asymptote is in the form of
.....................horizontal asymptote
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