Application of DerivativeHard

Question

A particle moves along the curve y = x2 + 2x Then the points on the curve are the x and y coordinates of the particle changing at the same rate, are-

Options

A.
B.
C.
D.

Solution

y = x2 + 2x
given        = 1
y = x2 + 2x     = (2x + 2) ×
= 2x + 2    1 = 2x + 2
x = - ; y = -3/4   Points is



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