SOLUTION: suppose you have AB on a coordinate located at A(-3,-4) and B(5,-4). Under a dilation centered at (9,0), AB becomes A'B' with coordinates A'(6,-1) and B'(8,-1). What is the scale f

Algebra ->  Length-and-distance -> SOLUTION: suppose you have AB on a coordinate located at A(-3,-4) and B(5,-4). Under a dilation centered at (9,0), AB becomes A'B' with coordinates A'(6,-1) and B'(8,-1). What is the scale f      Log On


   



Question 1080602: suppose you have AB on a coordinate located at A(-3,-4) and B(5,-4). Under a dilation centered at (9,0), AB becomes A'B' with coordinates A'(6,-1) and B'(8,-1). What is the scale factor for this dilation?
Answer by KMST(5328) About Me  (Show Source):
You can put this solution on YOUR website!
Everything shrank,
and I do nos need to know where the dilation is centered.
Distance AB was 8, and distance A'B' is 2,
so the dilation factor is 2%2F8=1%2F4 .

Knowing the center, I would say that points A and B,
with y+=+y%5Bcenter%5D-4 have images
with y+=+y%5Bcenter%5D-1 ,
so that makes the dilation factor 1%2F4 .