How do you find the distance between (7, 7) and (–7, 7)?

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How do you find the distance between (7, 7) and (–7, 7)?

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Answer 1 · 2015-01-21T00:48:07

The distance is 14. You can see it on the plan: the two points are at the same height, both 7 units far from the origin. Otherwise, using the formula:
#d(x,y)=\sqrt{(x_1-y_1)^2 + (x_2-y_2)^2}#. In your case, #x_1=x_2=y:2=7#, and #y_1=-7#. Thus, you have
#d(x,y)=\sqrt{(7+7)^2 + (7-7)^2}=\sqrt{14^2}=14#

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How do you find the distance between (7, 7) and (–7, 7)?

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