Mathematics, 15.12.2020 01:00 econsta3
Dilate the the triangle, scale factor = 3 (positive 3, ignore the
negative in the image below) with a center of dilation about
the origin.
A(-7,-6)
B(-5,-2)
C(-1,-5)
Answers: 2
. 
, 
and 
, respectively.![P'(x,y) = O(x,y) + k\cdot[P(x,y)-O(x,y)]](/tpl/images/0983/1751/21744.png)
(1)
- Center of dilation, dimensionless.
- Scale factor, dimensionless.
- Original point, dimensionless.
- Dilated point, dimensionless. 
, 
, 
, 
and 
, then dilated points of triangle ABC are, respectively:![A'(x,y) = O(x,y) + k\cdot [A(x,y)-O(x,y)]](/tpl/images/0983/1751/d01bd.png)
(2)![A'(x,y) = (0,0) + 3\cdot [(-7,-6)-(0,0)]](/tpl/images/0983/1751/8cb96.png)
![B'(x,y) = O(x,y) + k\cdot [B(x,y)-O(x,y)]](/tpl/images/0983/1751/d308a.png)
(3)![B'(x,y) = (0,0) + 3\cdot [(-5,-2)-(0,0)]](/tpl/images/0983/1751/fbdbc.png)
![C'(x,y) = O(x,y) + k\cdot [C(x,y)-O(x,y)]](/tpl/images/0983/1751/05fd2.png)
(4)![C'(x,y) = (0,0) +3\cdot [(-1,-5)-(0,0)]](/tpl/images/0983/1751/ef4be.png)
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Dilate the the triangle, scale factor = 3 (positive 3, ignore the
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