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On the number line, what point is equal to 1/√4?

Answer and explanation

Correct answer: 1/2

The governing concept is simplifying a real-number expression before locating its value on the number line. The principal square root of 4 is √4 = 2, because 2² = 4 and the principal root is non-negative. Therefore, 1/√4 = 1/2. This point is positive and lies halfway between 0 and 1, so option A is correct. Option B is the denominator after simplification, not its reciprocal. Option C would result from incorrectly replacing √4 by 4 and then taking 1/4. Option D is the radicand itself, not the value of the given expression. The exact simplification leaves no need for approximation.

Related tags

Number-LineReciprocalExact-ValueReal-NumbersRepresenting Real Numbers On The Number LinePolynomialsMathematicsClass 10 Mcq

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