Posted by **robbie** on Thursday, July 21, 2011 at 3:02pm.

Given a dilation with the origin O (0, 0), by observation determine the scale factor "K."

DO, K = (5, 0) (10, 0)

The dilation an expansion.

true or false

- math -
**MathMate**, Thursday, July 21, 2011 at 10:33pm
The dilation constant K with origin (0,0) can be determined by

x'/x or y'/y

where (x,y) is the original position, and (x',y') is the image (dilated position).

In this case, since both y' and y are zero, only k=x'/x applies.

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