Jay520 on 20 February 2013
| miz1q2w3e said: This is impossible since, like Osc89 said, a vertical stretch is just a horizontal compression. ...Define vertical stretching? @bolded, what you're describing sounds like shifting... |
A vertical stretch is only a horizontal compression sometimes. For example, take this graph:
A vertical stretch would look like this: (Stretched by 2)
While a horizontal compression would look like this: (Compressed by 2)
As you can see, the vertical stretch and horizontal compression are different.
By vertical stretching, I mean this:
changing f(x) = (x+2)^2 to f(x) = 2(x+2)^2
While by horizontal stretching, I mean this:
changing f(x) = (x+2)^2 to f(x) = (x/2 + 2)^2..
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I will come back later to better express myself with graphs.
