Posted by Zoey on Saturday, May 14, 2011 at 7:50pm.
What is the value of x in the equation of an ellipse???
Equation of an ellipse  (x^2/a^2) + (y^2/b^2) = 1

Calculus/Trigonometry  Damon, Saturday, May 14, 2011 at 7:59pm
x is any real number between and including a and +a