Thread: Dilating the truncus

Simple question. Say I have 1/x^2, and I were to dilate it 'from the y-axis' by a factor of 2 units.
Do I get 1/2x^2?

Originally Posted by Naur

Simple question. Say I have 1/x^2, and I were to dilate it 'from the y-axis' by a factor of 2 units.
Do I get 1/2x^2?

Sketch the two graphs, does that look right?

I'd say yes. But these 'from y-axis/parallel to y-axis' terms always confuse me.

Originally Posted by Naur

I'd say yes. But these 'from y-axis/parallel to y-axis' terms always confuse me.

You want something which is twice as far away from the y at every point.

Oh well that makes it pretty easy doesn't it. So the correct answer would be 2/x^2. Thanks very much

Are you sure?