# A particle moves

It is given that equation of the curve is 6y = x3 + 2.

The rate of change of the position of the particle with respect to time (t) is given by:

………….. (1)

When the y- coordinate of the particle changes 8 times as fast as the x – coordinate

then, we have,

So, putting the value in (1), we get,

So, when x = +4, then,

And

So, when x = -4, then, y = -62/6 = -31/2

Therefore, the points required on the curve are (4,11) are (-4, -31/2).

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