Parabolas

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SAT Math › Parabolas

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Which of the following equations represent a parabola?

$y=\frac{1}{2}x^2$

$y=\frac{1}{2x}$

$y=\frac{1}{2x^2}$

The parabola is represented in the form . If there is a variable in the denominator or as an exponent, it is not a parabola.

The only equation that has an order of two is: $y=\frac{1}{2}x^2$