find the distance between the points (1, 3) and (-7, 2).

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jfre8n3deegan jfre8n3deegan

11-07-2016
Mathematics

contestada

find the distance between the points (1, 3) and (-7, 2).

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dalendrk dalendrk · Answer 1 · 2016-07-15T18:49:07+02:00

dalendrk dalendrk

15-07-2016

[tex]A(x_1;\ y_1);\ B(x_2;\ y_2)\\\\the\ distance\ between\ A\ and\ B:\\\\d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}\\-------------------------\\\\A(1;\ 3);\ B(-7;\ 2)\\\\d=\sqrt{(-7-1)^2+(2-3)^2}=\sqrt{(-8)^2+(-1)^2}=\sqrt{64+1}\\\\=\boxed{\sqrt{65}}[/tex]

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