Question

Wants to build a regulation-size pool table that is 9 feet in length.The plans he ordered are 18 by 36 inches.what is the scale factor of the dilation ?

Answer 1

Length = the longer side

He wants to build a table with a length of 9ft.

The plans he has are 18ft x 36ft
Length of the plans =  36ft
Compare the length of the plans to the length he wants:
36 ft vs 9 ftThe length in the plans is 4 times longer than the length he wants.

Length he wants / Length of plans = your dilation scale factor

9 / 36 = ¼
1/4 = dilation scale factor
Hope this answers your question, and May the Force Be With You!

-Jabba