Don't get fooled

Algebra Level 1

Are there any differences between the graphs y = x y=\sqrt x and y 2 = x y^{2}=x ?

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1 solution

Blan Morrison
Mar 23, 2018

If we solve for y y in the second equation, we get: y = ± x y=\pm\sqrt{x} . That means, in the first equation, there are only positive outputs. In the second equation, there are both positive and negative outputs.

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