A circle is graphed on a coordinate grid and then reflected across the y-axis. If the center of the original circle was located at (x, y), which ordered pair represents the center of the new circle after the transformation?
A) (x, y)
B) (x, −y)
C) (−x, y)
D) (−x, −y)

Now, one ordered pair (x,y) after the reflection across the y-axis will be moved "from left to right" or "from right to left", then the y-value doesn't change and the x-value changes sign (to preserve the distance). Then, the the new center will be (-x,y). So, the answer is C.

A circle is graphed on a coordinate grid and then reflected across the y-axis. If the center of the original circle was located at (x, y), which ordered pair represents the center of the new circle after the transformation? A) (x, y) B) (x, −y) C) (−x, y) D) (−x, −y)

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A circle is graphed on a coordinate grid and then reflected across the y-axis. If the center of the original circle was located at (x, y), which ordered pair represents the center of the new circle after the transformation?
A) (x, y)
B) (x, −y)
C) (−x, y)
D) (−x, −y)