Qualification > Math

c1 help plzzzzzzzzzzzz

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T.Q:

--- Quote from: EVIL DOCTOR on January 10, 2010, 05:35:52 pm ---how can u know the coordinates that crosses the x-axis as quick as possible :

Y= (x-2)^3 - 6(x-2)^2 + 9(x-2)

--- End quote ---

take (x-2) as a common factor
 
(x-2)( (x-2)^2-6(x-2)+9 )
 
make y=(x-2)

so the equation will be like this

y(y^2-6y+9)

factorise

then...

y=0
y=3

which means
x-2=0   and   x-2=3

x=2 or x=5
 

XFlufferzX:

--- Quote ---take (x-2) as a common factor
 
(x-2)( (x-2)^2-6(x-2)+9 )
 
make y=(x-2)

so the equation will be like this

y(y^2-6y+9)

factorise

then...

y=0
y=3

which means
x-2=0   and   x-2=3

x=2 or x=5

--- End quote ---
Awesooooome now I get it!  :D thx

rreizend:
this is a horizontal translation f(x-2) where f(x)=x^3-6x^2+9x from the previous question

since its f(x-2) then you hav to add 2 to all x points. ;D

its simple really :D

XFlufferzX:

--- Quote ---this is a horizontal translation f(x-2) where f(x)=x^3-6x^2+9x from the previous question

since its f(x-2) then you hav to add 2 to all x points.
--- End quote ---

Lol riight!

Ghost Of Highbury:
wats the full form of C1..??

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