The function is .
The denominator is zero when x = 1.
\So, the domain of f is all real numbers except x = 1.
\To determine the behavior of f near this excluded value, evaluate f(x) to the left and right of x = 1.
The domain of f is all real numbers except x = 1.
\The function is .
Make the table : 1
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x \ | \
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0.5 \ | \
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0.9 \ | \
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0.99 \ | \
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0.999 \ | \
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| \
Make the table : 2
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x \ | \
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1.5 \ | \
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| \
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1.1 \ | \
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1.01 \ | \
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1.001 \ | \
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| \
Make the table : 3
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x \ | \
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| \
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| \
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| \
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| \
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| \
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| \
Make the table : 4
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x \ | \
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| \
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\
The function is .
The denominator is zero when x = 1.
\So, the domain of f is all real numbers except x = 1.
\To determine the behavior of f near this excluded value, evaluate f(x) to the left and right of x = 1.
\Obsrve the tables x approaches 1 from the left, f(x) decreases without bound. In contrast, as x approaches 1 from the right, f(x) increase without bound.
The behavior of f near x = 1 is .