anonymous
  • anonymous
find the distance (-1,2) (2,-4)
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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chestercat
  • chestercat
I got my questions answered at brainly.com in under 10 minutes. Go to brainly.com now for free help!
AravindG
  • AravindG
use distance formula
RadEn
  • RadEn
use the formula : d = sqrt((y2-y1)^2 + (x2-x1)^2)
AravindG
  • AravindG
\[distance=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}\]

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More answers

anonymous
  • anonymous
I don't understand how! I need help please?
anonymous
  • anonymous
|dw:1359221133669:dw|
AravindG
  • AravindG
take (-1,2) as \((x_1,y_1) \) take (2,-4) as \((x_2,y_2) \)
AravindG
  • AravindG
then use the formula above
anonymous
  • anonymous
i need to know how to solve it!! i know the formula but i need an example
AravindG
  • AravindG
ok
AravindG
  • AravindG
find distance between (2,4) and (5,6)
anonymous
  • anonymous
(1,2) to (3,4) distance is sqrt((3-1)^2 + (4-2)^2) = sqrt(8)
anonymous
  • anonymous
this formula comes from pythagoreas, c^2 = a^2 + b^c
AravindG
  • AravindG
|dw:1359221442540:dw|
AravindG
  • AravindG
|dw:1359221484203:dw|
AravindG
  • AravindG
understood ?@jabbers! ?
AravindG
  • AravindG
@jabbers! ?
anonymous
  • anonymous
.... sigh. sidenote. things don't come automatically to most people - you have to read them and try to understand
anonymous
  • anonymous
where did 5 come from
AravindG
  • AravindG
i took second point as (5,6)
anonymous
  • anonymous
second point is (2,-4)
AravindG
  • AravindG
i was doing an example!!
AravindG
  • AravindG
look above !
anonymous
  • anonymous
ok.
AravindG
  • AravindG
now try to do your question ! :)
anonymous
  • anonymous
|dw:1359221710963:dw|
anonymous
  • anonymous
@AravindG
AravindG
  • AravindG
what did u get ?
anonymous
  • anonymous
i put it in my calculator and got an error. @AravindG
anonymous
  • anonymous
i got \[3\sqrt{5}\]
AravindG
  • AravindG
you are right !!
anonymous
  • anonymous
thank u. finally!

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