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# core 3 transformation just checking watch

1. What transformation describes 0.5f(x+1)

The mark scheme says Translate 1 to the left and then a Y stretch of 0.5

Is this the same as Y stretch of 0.5 then translate 1 the left?
2. (Original post by pheekum)
What transformation describes 0.5f(x+1)

The mark scheme says Translate 1 to the left and then a Y stretch of 0.5

Is this the same as Y stretch of 0.5 then translate 1 the left?
Yes.
3. (Original post by pheekum)
What transformation describes 0.5f(x+1)

The mark scheme says Translate 1 to the left and then a Y stretch of 0.5

Is this the same as Y stretch of 0.5 then translate 1 the left?
Yes because one affects Y values and the other one X values only so the order does not matter..but if it was 0.5f(x)+3 then the order would matter.
4. Yeah

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5. (Original post by hassassin04)
Yes because one affects Y values and the other one X values only so the order does not matter..but if it was 0.5f(x)+3 then the order would matter.
In that case would you do the stretch then the translation? Just realised I don't actually know.
6. (Original post by Ronove)
In that case would you do the stretch then the translation? Just realised I don't actually know.
Yes.
7. (Original post by Ronove)
In that case would you do the stretch then the translation? Just realised I don't actually know.
Yes, however, if it is f(2x+6) then you translate first then multiply by 1/2 scale factor. Or you pull 2 out getting f(2(x+3) ) , multiply then stretch.
8. (Original post by hassassin04)
Yes, however, if it is f(2x+6) then you translate first then multiply by 1/2 scale factor. Or you pull 2 out getting f(2(x+3) ) , multiply then stretch.
Thanks this one helped me alot

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