+0  
 
+5
156
1
avatar+282 

i don't get it

lizagame  Mar 4, 2017
 #1
avatar+87333 
0

Reflecting  DF across the x axis will just change the sign on the y coordinate...so

 

D = ( -4, -3)  → D' = ( -4, 3)

 

F = (-2, 4) → F' = ( -2, -4)

 

(d) is correct

 

 

cool cool cool

CPhill  Mar 4, 2017

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