Use
minus−infinity[infinity]
or
infinity[infinity]
w...
Mathematics, 12.02.2020 04:09 XxpinkgothicxX
Use
minus−infinity[infinity]
or
infinity[infinity]
where appropriate to describe the behavior at each zero of the denominator and identify all vertical asymptotes.
f left parenthesis x right parenthesis equals StartFraction x squared minus 6 x minus 72 Over x squared minus 18 x plus 72 EndFractionf(x)=x2−6x−72x2−18x+72
Locate all zeros of the denominator. Choose the correct answer below.
A.
f has zeros of the denominator at
x equals 12x=12,
x equals 6x=6,
and
x equals negative 6x=−6.
B.
f has a zero of the denominator at
x equals 6x=6.
C.
There are no zeros of the denominator.
D.
f has zeros of the denominator at
x equals 12x=12
and
x equals 6x=6.
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