Asked by Lisa
Find the slope of the tangent line to the ellipse
(x^2)/4 + (y^2)/9 = 1 at the point (x,y)
(x^2)/4 + (y^2)/9 = 1 at the point (x,y)
Answers
Answered by
Reiny
I would first multiply by 36 to get rid of the nasties.
9x^2 + 4y^2 = 36
18x + 8y dy/dx = 0
dy/dx = -18x/(8y) = -9x/(4y)
all done.
9x^2 + 4y^2 = 36
18x + 8y dy/dx = 0
dy/dx = -18x/(8y) = -9x/(4y)
all done.
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