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# C3 Transformation graph questions watch

1. Hey all, I have a question about what I should put as my answer for the transformation questions; i.e. what is more likely to be on the mark scheme or just what looks better to put.

Say for example I was asked to describe the transformation of cos(x) onto 10 + cos(5x) . Is it better to say:
1. Translation on the y axis by vector (0,10) , stretch in the x axis by scale factor 1/5 or
2. Translation on the vertical axis by vector (0,10) , stretch in the horizontal axis by scale factor 1/5 ?

It sounds silly, but my friend and I always wonder which looks better to put, even though I don't think it matters. She even sometimes writes translation to the left/right or up/down, which I'm sure is also alright! As well as that, I think the examiner would know what you meant in any case, but just incase, I wonder what looks better for me to write.

Bit of a silly question *facepalm* , but hey I can be a bit of a silly person xD
2. (Original post by virtual.photon)
Hey all, I have a question about what I should put as my answer for the transformation questions; i.e. what is more likely to be on the mark scheme or just what looks better to put.

Say for example I was asked to describe the transformation of cos(x) onto 10 + cos(5x) . Is it better to say:
1. Translation on the y axis by vector (0,10) , stretch in the x axis by scale factor 1/5 or
2. Translation on the vertical axis by vector (0,10) , stretch in the horizontal axis by scale factor 1/5 ?

It sounds silly, but my friend and I always wonder which looks better to put, even though I don't think it matters to much. She even sometimes writes translation to the left/right or up/down, which I'm sure is also alright! As well as that, I think the examiner would know what you meant in any case, but just incase, I wonder what looks better for me to write.

Well, you could just put stretch in the horizontal x axis for further clarification if you like...It doesn't really matter....
3. I'd say the first one. The piece of paper is horizontal so neither axis is vertical.
4. Haha, true that ^^ . See I don't even think it's big a deal but I wondered anyway, just incase there is actually supposed to be a proper way to write it. The examiner would have to be a little silly not to realise they mean the same thing.

I'm blatantly too stupid to be doing maths D: . Thanks though!

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