find xy, x(-9,2) and y(5,-4)
xy=((5−(−9))2+(−4−2)2)=142+(−6)2=196+36=232=258xy=\sqrt{((5-(-9))^2+(-4-2)^2 )}=\sqrt{14^2+(-6)^2}=\sqrt{196+36}=\sqrt{232}=2\sqrt{58}xy=((5−(−9))2+(−4−2)2)=142+(−6)2=196+36=232=258
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