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If (p=-\sqrt{17}) and (q=-4.2), which statement is correct on the number line?

Answer and explanation

Correct answer: (p>q)

The important idea is that numbers farther to the right on a number line are greater. Both given numbers are negative, so their positions must be compared carefully: a negative number closer to zero is greater than a negative number farther from zero.

Since
\(\sqrt{17}\approx4.123\), we get \(p=-\sqrt{17}\approx-4.123\), while \(q=-4.2\). On the number line, \(-4.123\) lies to the right of \(-4.2\), so \(-4.123>-4.2\). Therefore, statement A, \(p>q\), is correct. Statement C reverses this comparison, and the other choices do not describe the given numbers.

Related tags

Number-LineNegative-IrrationalComparison

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