+0  
 
+1
697
2
avatar+4609 

Parallelogram ABCD has A(0,1),  B(2,1) and C(4,0) as three of its vertices. What is the sum of the coordinates of point D?

 Mar 16, 2018
 #1
avatar+128083 
+4

Note that   A  is 2   units to the left  of  B

 

So.....D  is 2 units to  the left of C  =  ( 4 - 2, 0 )  =  (2, 0)

 

So.....the sum of its coordinates   =  2

 

 

cool cool cool

 Mar 16, 2018
 #2
avatar+4609 
+2

Thanks so much, CPhill! Very good, yay! smileylaugh

tertre  Mar 17, 2018

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