We use cookies to personalise content and advertisements and to analyse access to our website. Furthermore, our partners for online advertising receive pseudonymised information about your use of our website. cookie policy and privacy policy.
 
+0  
 
-1
1293
1
avatar+1016 

The smaller triangle is the image of the larger triangle after a dilation. The center of the dilation is (−3,−2).

 

What is the scale factor used to create the dilation?

 Nov 20, 2017
 #1
avatar+101898 
+1

Let C  =  (-3, -2)

Let A = ( 5, -2)

Let A' =  ( -5, - 2)

 

So we have that

 

< A'  > =   < A  - C > *(Scale Factor) + < C >

 

< -5, -2 >  =  <  8, 0 > *(Scale Factor) + < -3, -2 >

 

< -2, 0 >  =  < 8, 0 > * (Scale Factor )

 

So

 

-2  =  8 * Scale Factor     ....... divide both side by 8

 

- (1/4)  =  Scale Factor

 

 

cool cool cool

 Nov 21, 2017

10 Online Users

avatar
avatar
avatar