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I need the answer as soon as possible. Thank You

Guest Mar 22, 2018

Best Answer 

 #1
avatar+7065 
+2

point D  =  midpoint of AB  =  \((\frac{4+2}{2},\frac{6+-2}{2})\,=\,(\frac62,\frac42)\,=\,(3,2)\)

 

point E  =  midpoint of AC  =  \((\frac{4+-2}{2},\frac{6+-4}{2})\,=\,(\frac22,\frac22)\,=\,(1,1)\)

 

slope of DE  =  \(\frac{2-1}{3-1}\,=\,\frac12\)

 

slope of BC  =  \(\frac{-2--4}{2--2}\,=\,\frac24\,=\,\frac12\)

 

slope of DE  =  slope of BC

 

therefore  DE  is parallel to  BC .

hectictar  Mar 22, 2018
 #1
avatar+7065 
+2
Best Answer

point D  =  midpoint of AB  =  \((\frac{4+2}{2},\frac{6+-2}{2})\,=\,(\frac62,\frac42)\,=\,(3,2)\)

 

point E  =  midpoint of AC  =  \((\frac{4+-2}{2},\frac{6+-4}{2})\,=\,(\frac22,\frac22)\,=\,(1,1)\)

 

slope of DE  =  \(\frac{2-1}{3-1}\,=\,\frac12\)

 

slope of BC  =  \(\frac{-2--4}{2--2}\,=\,\frac24\,=\,\frac12\)

 

slope of DE  =  slope of BC

 

therefore  DE  is parallel to  BC .

hectictar  Mar 22, 2018
 #2
avatar
0

it only gave me one mark out of four and i wrote it all (the mark only came from writing point d)

Guest Mar 22, 2018
edited by Guest  Mar 22, 2018
 #3
avatar+86859 
0

Hectictar's answer is about as good as it gets.....!!!!

 

Check your input, again......

 

 

cool cool cool

CPhill  Mar 22, 2018

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