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JEE MATHEMATICS MCQ: RATE MEASURE

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Application +4 | -1

A point is moving on

y = 4 - 2{x^2}

. The

x

-coordinate of the point is decreasing at the rate of 5 unit per second. Then, the rate at which

y

-coordinate of the point is changing when the point is at (1,2)is

View answer and explanation

Correct option: D

20 units

Option D (20 units) is correct because it is calculated by differentiating the equation with respect to time and substituting the given values.

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