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why is the reflection of y=-(x+2)2 +3 the same as the reflection of -y=(x+2)2-3 I know...

why is the reflection of y=-(x+2)2 +3 the same as the reflection of -y=(x+2)2-3

I know they're the same algebraically but which vertical shift to do -3 or +3 ?? and how do I determine that

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