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Match the LIST-I with LIST-II

LIST-ILIST-II
A.y=x2y = x^2I.decreasing on (0,∞)(0, \infty)
B.y=−x2y = -x^2II.increasing on (0,∞)(0, \infty)
C.y=xy = xIII.decreasing on (−∞,∞)(-\infty, \infty)
D.y=−xy = -xIV.increasing on (−∞,∞)(-\infty, \infty)

Choose the correct answer from the options given below:

Solution

✅ Correct Option: 4

For y=x2y=x^2, y′=2x>0y'=2x>0 on (0,∞)(0,\infty) (II). For y=−x2y=-x^2, y′=−2x<0y'=-2x<0 there (I). For y=xy=x, y′=1>0y'=1>0 everywhere (IV). For y=−xy=-x, y′=−1<0y'=-1<0 everywhere (III).

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