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Need answer for algebra it’s on rational functions

Need answer for algebra it’s on rational functions-example-1

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Answer:

C

Explanation:

the denominator of f(x) cannot be zero as this would make f(x) undefined.

Equating the denominator to zero and solving gives the value that x cannot be and if the numerator is non zero for this value then it is a vertical asymptote.

2x + 6 = 0 ( subtract 6 from both sides )

2x = - 6 ( divide both sides by 2 )

x = - 3

Thus x = - 3 is a vertical asymptote of f(x)

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