Posted by Katie on Sunday, April 26, 2009 at 1:06pm.
I did see that question yesterday, but was waiting until some other math tutor might understand what you mean by "a stretch by a factor of 1/2 about the line y=1 ".
I am going to guess that you mean the distance of the point (2,7) to the line y = 1 cut in half.
After that the new point would be (2,4)
Now this new point is -1 units from x=3, so I would guess we move it 3(-1), which would place it at (-1,4)
I don't know if this is what you ask?
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