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If \(x=\frac{17}{10}\) and \(y=\sqrt{3}\), which of these points lies to the left on the number line?

Answer and explanation

Correct answer: x

Both numbers are positive, so their squares can be compared. \(x^2=\left(\frac{17}{10}\right)^2=\frac{289}{100}=2.89\), whereas \(y^2=(\sqrt{3})^2=3\). Thus, \(x^2<y^2\) implies \(x<y\), so \(x\) lies to the left on the number line. The distractor \(y\) is incorrect because \(y\approx1.732\), while \(x=1.7\). Exam tip: For positive numbers, comparing their squares is often easier than comparing the numbers directly.

Related tags

PolynomialsNumber LineReal NumbersRational Irrational ComparisonRepresenting Real Numbers On The Number LineMathematicsClass 10 Mcq

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