# Pls explain why A (4,-2) change into A' (-4,2) why 4 Change to -4 and -2 change into 2

As you can see Point A and Point A' are at equal distance.

Now Point A is in fourth quadrant where x is positive and y negative as (4,-2)

but in case A' its in second quadrant where x is negative and y positive hence (-4,2)

so therefore 4 changes to -4 and -2 to 2.

Regards

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