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Mathematics 15 Online
OpenStudy (anonymous):

Slanted Ellipse and something about implicit differentiation (comments)...

OpenStudy (anonymous):

OpenStudy (anonymous):

The implicit diff. part isn't so tough, it is the rest I don't much understand! Thanks.

OpenStudy (anonymous):

to find horizontal tangents, plug in 0 for y' in the implicit differentiation

OpenStudy (anonymous):

the question is asking for the greatest y-coordinate of the ellipse. the line y=ymax is a horizontal tangent.

OpenStudy (anonymous):

similarly, to find vertical tangents, plug in 0 for x' in the implicit differentiation of x(y)

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