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January 30, 2015

January 30, 2015

Posted by **Abi** on Thursday, March 17, 2011 at 1:32am.

slope =_______

Are there any points where the slope is not defined? (Enter them as comma-separated ordered-pairs, e.g., (1,3), (-2,5). Enter none if there are no such points.)

slope is undefined at____

Please help..

- Calculus -
**drwls**, Thursday, March 17, 2011 at 2:52amUse implicit differentiation, by differentiating each side of the equation with respect to x.

x/18 + (2y/49)*dy/dx = 0

dy/dx = -(49/2)(x/18y)

= -(49/36)(x/y)

The slope is undefined where y = 0, which is where x = +/- 6:

(-6,0) and (6,0)

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