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What is the vertical asymptote of the graph (y=\frac{1}{x+5})?

Answer and explanation

Correct answer: (x=-5)

A vertical asymptote is a vertical line near which the graph moves without bound, while the function itself is not defined. For a rational function, it is usually found by making the denominator zero, provided no factor cancels with the numerator. This gives the excluded x-value and therefore the vertical line.

Here the denominator is \(x+5\). Setting it equal to zero gives \(x+5=0\), so \(x=-5\). Thus the graph has the vertical asymptote \(x=-5\), which is option A. The line \(y=0\) is horizontal, not vertical, and \(x=5\) would result from an incorrect sign.

Related tags

GraphsRationalAsymptote

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