Computer hardware is best described as devices such as laptops and tablets. the physical parts of a computer. the system that operates a computer. a graphical user interface.

sorry, i can't understand your question. will later if you describe more clearly!

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the answer is (4,3)

since the rule for r0, 90º is (-y,x) and it was already applied to form the image, all you have to do is reverse the answer using this formula.