SOLUTION: Determine whether the equation defines y as a function of x. x + y = 9

Algebra ->  Equations -> SOLUTION: Determine whether the equation defines y as a function of x. x + y = 9       Log On


   

Question 634823: Determine whether the equation defines y as a function of x.
x + y = 9
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
Solve for y to get y+=+9+-+x

Since plugging in any x value gives you one and only one y value, this means that y is definitely 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
--------------------------------------------------------------------------------------------------------------