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Question

Select the correct statement(s) for the expression y=x2.

A
y decreases as we move from to 0
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B
y increases as we move from 0 to
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C
y increases as we move from to 0
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D
y=0 at x=0
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Solution

The correct option is D y=0 at x=0
Graph of y=x2 lies below the x-axis, and is symmetric about y-axis as shown below.



As we can see, the values of y decreases as the values of x increases for positive real values of x.
And the values of y increases as the values of x increases in negative real values of x.
Also, if we put x=0
we get, y=(0)2=0

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