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# C3 transformations order help! watch

1. does anyone know the reason why this is...

y=/x/ (modulus of x)
translation by [4,0] then stretch by sf 2 in the x-direction looks lyk this..
y= 1/2 /x-4/?

and if do the transformation in the opposite order it looks like this...
y= /0.5x - 2/

:O
2. (Original post by kesh_888)
does anyone know the reason why this is...

y=/x/ (modulus of x)
translation by [4,0] then stretch by sf 2 in the x-direction looks lyk this..
y= 1/2 /x-4/?

and if do the transformation in the opposite order it looks like this...
y= /0.5x - 2/

:O
I suggest you post the original question.
3. show that the image of y=/x/ (modulus of x) after a
translation by [4,0] followed bya stretch by sf 2 in the x-direction looks lyk y= /o.5 x-4/?

now find the image of y=/x/ after applying the same transformation in the opposte order?

i dnt get how the order works?
4. (Original post by kesh_888)
show that the image of y=/x/ (modulus of x) after a
translation by [4,0] followed bya stretch by sf 2 in the x-direction looks lyk y= /o.5 x-4/?

now find the image of y=/x/ after applying the same transformation in the opposte order?

i dnt get how the order works?
Why are you spelling "like" in a strange way?

Why have you omitted brackets?

Where does the question come from?
5. x always goes first
6. im typing really fast thats why. its not brackets its a modulus function but i dont know how to get the straight line on the computer.
its from the 'Cambrigde SMP AS/A2 mathematics AQA' book
7. (Original post by kesh_888)
im typing really fast thats why. its not brackets its a modulus function but i dont know how to get the straight line on the computer.
its from the 'Cambrigde SMP AS/A2 mathematics AQA' book
You should have put brackets around the x-4

8. oh right i get it now! thanks
9. so if it says s stretch first, do i do fill in the stretch ( y=x strech by sf 2>>>>> y=1/2x) and then if it says followed by translation (4,0), do i put the x and 4 in a bracket? >>> y= 1/2(x-4)??

if its the other way round is it...
y= (x-4) then y=(1/2x -4) ??
10. (Original post by kesh_888)
show that the image of y=/x/ (modulus of x) after a
translation by [4,0] followed bya stretch by sf 2 in the x-direction looks lyk y= /o.5 x-4/?

now find the image of y=/x/ after applying the same transformation in the opposte order?

i dnt get how the order works?

y=/x/

translation

y=/x-4/

stretch

y=/ x/2-4 /

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