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A function is matched below against an i...

A function is matched below against an interval where it is supposed to be increasing. Which of the following parts is incorrectly matched? Interval, Function [2, `oo)` , `2x^3-3x^2-12 x+6` `(-oo,oo)` , `x^3=3x^2+3x+3` `(-oo-4)` , `x^3+6x^2+6` `(-oo,1/3)` , `3x^2-2x+1`

A

`{:(,"Interval,"Function"),(,-oo,-4),(,x^(3)+6x^(2)+6):}`

B

`{:(,"Interval,"Function"),(,(-oo,1/3],3x^(2)-2x+1):}`

C

`{:(,"Interval,"Function"),(,[2,oo),(,2x^(3)-3x^(2)-12x+6):}`

D

`{:(,"Interval,"Function"),(,(-oo,oo),(,x^(3)-3x^(2)+3x+3):}`

Text Solution

Verified by Experts

The correct Answer is:
B
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