hayla31 hayla31
  • 13-12-2018
  • Mathematics
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That u have to find the distance between the pair of points

That u have to find the distance between the pair of points class=

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gmany
gmany gmany
  • 14-12-2018

The formula of a distance between two points:

[tex]d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}[/tex]

We have the points (1, 3) and (3, 1). Substitute:

[tex]d=\sqrt{(3-1)^2+(1-3)^2}=\sqrt{2^2+(-2)^2}=\sqrt{4+4}=\sqrt8\approx2.8[/tex]

Answer: C. 2.8

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