Dalia S.

asked • 06/04/14

Find the slope of the tangent line to the curve

Find the slope of the tangent line to the curve (a lemniscate)
2(x2+y2)2= 25(x2-y2)
at the point (-3,-1)
m=

1 Expert Answer

By:

PIYUSH L. answered • 06/04/14

Maths tutoring for middle school to college maths students

Dalia S.

this answer is also incorrect
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06/04/14

PIYUSH L.

I made a calculation mistake at the end. After solving 
 
4(9+1)(-6-2*dy/dx) = 25(-6+2*dy/dx)
 
dy/dx should be -9/13
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06/05/14

Dalia S.

thats what i thought aswell, thank you for your help and time youve been more than helpful! :)
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06/05/14

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