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# Describe in words the region of $\mathbb{R}^3$ represented by the equation(s) or inequality.$y^2 = 4$

## This represents two planes $y=2$ and $y=-2$

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### Video Transcript

Okay, so let's take a look at this guy here. Why? Squared is equal to four. So, um, this kind of looks like it almost looks like a parabola. But why? Squared is always equal to four. So it's going to look mostly like a parable.

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