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CUET · MATHS · PYQ PAPER 2023

The point on the curve \(y^2=8 x\) for which the abscissa and ordinate change at the same rate is :

  1. A \((2,4)\)
  2. B \((4,2)\)
  3. C \((0,2)\)
  4. D \((2,0)\)
Verified Solution

Answer & Solution

Correct Answer

(A) \((2,4)\)

Step-by-step Solution

Detailed explanation

\(2y \frac{dy}{dt} = 8 \frac{dx}{dt}\) \(2y \frac{dy}{dt} = 8 \frac{dy}{dt} \Rightarrow y = 4\) \((4)^2 = 8x \Rightarrow 16 = 8x \Rightarrow x = 2\) \((2,4)\)
From CUET
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