+0  
 
+1
115
1
avatar+22 

The set for a school play needs a replica of a historic building painted on a backdrop that is 24 feet long and 14 feet high. The actual building measures 432 feet long by 252 feet high. A stage crewmember writes 

(x, y)  →(1/22x, 1/22y) to represent the dilation. Is the crewmember's calculation correct if the painted replica is to cover the entire backdrop? Complete the explanation.

 

The stage crewmember's calculation is ______. The scale factor for the backdrop is 1/? . 

Scheeit.Mads  Mar 22, 2017
Sort: 

1+0 Answers

 #1
avatar+77035 
+1

432/22   =  19.636

252/22  = 11.454

 

Thus.....[ (1//22)x, (1/22)y ]   is incorrect

 

Instead.....

 

432/24  = 18

252/14  = 18

 

The correct scaling  is   [ (1/18)x, (1/18)y ]

 

 

cool cool cool

CPhill  Mar 22, 2017

8 Online Users

avatar
avatar
avatar
We use cookies to personalise content and ads, to provide social media features and to analyse our traffic. We also share information about your use of our site with our social media, advertising and analytics partners.  See details