find the coordinates of the circle's center ......

Question

angela210793 · Answer

attachment

angela210793 · Answer

B(?;?)

anonymous · Answer

Your question may be rephrased what is f(x) or what is y when x is 1. As a check what is f(x), or what is y when x is -1?

angela210793 · Answer

is x=+-1? O.o

anonymous · Answer

0,1/4

angela210793 · Answer

O.o Will u explain me how did u get that? Please???

anonymous · Answer

same technique get y in terms of x from the 2nd equation,replca y in the first equation thenb solve it

anonymous · Answer

btw there is something weird going on my posts are showing up in 3 questions at once

angela210793 · Answer

idk wht 2 say abt tht....

angela210793 · Answer

w8 a sec...wht 2nd equation? O.o

anonymous · Answer

the equation of the circle must be x^2 + (y - b) = 1
since the circle must lie on the y axes due to symmtry and we don't know the y co-ordinate of the centre(we'll call it b)

angela210793 · Answer

shouldn't (y-b) b squared?

anonymous · Answer

now y = x^2
the resulting quadratic after subsitution can only have 1 root
therefor D = 0

anonymous · Answer

sorry typing error

angela210793 · Answer

Definitely I'm very stupid at maths....:(:(:( :'(

anonymous · Answer

don't worry I bet you're great at something else

angela210793 · Answer

^_^ Thanks ^_^ 
I got an idea...will u lend me ur brain only 4 1 day (15/06) i have a math exam...I'll give it back..SWEAR!!!!

anonymous · Answer

ha ha ha ... wish I could do that ... but alas

angela210793 · Answer

Yea..poor me....:(:( :'( :'( ...i guess i have to squeeze out my brain for a loong time till i learn these very well :S

anonymous · Answer

When y=1/4, x=+/- 1/2. Doesn't hold a 1 unit radius?!

anonymous · Answer

gtg guys best of luck angela

angela210793 · Answer

thnx ^_^