The equation is y= b/a*sqrt(a^2 - x^2)
the solution apparently has a y term in it but I can't figure out where it comes from. Can anyone give me a hand?
What is the derivative of ?
The only thing I can think of is that your answer has the y subbed back in to "clean" things up a bit. Your solution is (you can fill in the details)
Is that what your final answer is supposed to look like? If not I have no idea what your "y" term in your question means.