+0  
 
-1
1056
1
avatar+1016 

https://i.imgur.com/uVybL9b.png

 

press the link to see the question. 

 Nov 11, 2017
 #1
avatar+98196 
+1

Translate the center of  dilation to the origin  <  4, 3 >

This gives us   < x + 4, x + 3 >

Apply the scale factor  < 2x + 8 , 2x + 6 >

Shift back again < 2x + 8 - 4, 2x + 6 - 3 > 

 

The rule becomes   < 2x + 4 , 2x + 3 >

 

So  A'  is  < 2(-4) + 4, 2(-1) + 3 >   =   ( -4, 1)

B' is < 2(-4) + 4 , 2(-3) + 3 > = (-4 , -3 )

C' is  < 2 (-1) + 4, 2(-3) + 3 >  = ( 2, -3)

 

 

cool cool cool

 Nov 12, 2017

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