According to some doctors, proper viewing distance with your gadget should not be too close, not too far to protect your eyes and minimize harmful effects of electromagnetic radiations. Smartphone/gadgets should be ideally be positioned about 20 inches from the eye and the about 5 inches below eye level. Suppose you are holding your phone positioned at (0,5) with your eyeball position in the coordinate (10,5)

-Is this within the safety measure mentioned above? Why?
-If you are going to suggest, what would be the shortest coordinate would the gadget be positioned?​