Which of the following functions is depicted below?

x² – 2

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x² – 4

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x²+ 4

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x²

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Solution

The correct option is B
x² – 4

The graph of the function x² – 4 is a parabola. The coefficient of x²is 1(> 0). Therefore the parabola will open upward. The least value of x² - 4 is -4 and is obtained when x = 0.

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