SOLUTION: Determine whether the equation defines y as a function of x. x2 + y2 = 1

Algebra ->  Equations -> SOLUTION: Determine whether the equation defines y as a function of x. x2 + y2 = 1       Log On


   

Question 634824: Determine whether the equation defines y as a function of x.
x2 + y2 = 1
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
Solve for y to get



Because we got that "plus/minus", this means that each input produces 2 outputs...which means that y is NOT a function of x.

--------------------------------------------------------------------------------------------------------------
If you need more help, email me at jim_thompson5910@hotmail.com

Also, please consider visiting my website: http://www.freewebs.com/jimthompson5910/home.html and making a donation. Thank you

Jim
--------------------------------------------------------------------------------------------------------------