anonymous
  • anonymous
what is the formula for finding how long a line is? Like for example: how far away is (-3,4) from (5,4)?
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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katieb
  • katieb
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amistre64
  • amistre64
its the pythag thrm really, the distance is the hypotenuse of a right triangle
amistre64
  • amistre64
d^2 = (x-x0)^2 + (y-y0)^2
amistre64
  • amistre64
d^2 = (-3-5)^2 + (4-4)^2 d^2 = 64 d = sqrt(64) = 8

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amistre64
  • amistre64
the other way is to notice this is a flat line that goes from -5 to 3 and so is just 8 units long

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