Blitzy9979 Blitzy9979
  • 14-08-2018
  • Mathematics
contestada

Geometry question for homework.

Find the distance between each pair of points.
1.) (4, -5), (4, -2)
2.) (1, 1), (-1, 4)

Respuesta :

GoddessofDork
GoddessofDork GoddessofDork
  • 14-08-2018

So remember that the distance formula is [tex] \sqrt{(x_2-x_1)^2+(y_2-y_1)^2} [/tex] .

1.

[tex] \sqrt{(4-4)^2+(-2-(-5))^2}\\ \sqrt{0^2+3^2}\\ \sqrt{0+9}\\ \sqrt{9}\\ 3 [/tex]

Distance between (4,-5) and (4,-2) is 3 units.

2.

[tex] \sqrt{(1-(-1))^2+(1-4)^2}\\ \sqrt{2^2+(-3)^2}\\ \sqrt{4+9}\\ \sqrt{13} [/tex]

Distance between (1,1) and (-1,4) is √13 (or 3.61 rounded to the hundreths) units.

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