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Aleks [24]
3 years ago
14

Find the derivative of the given function at the indicated point.

Mathematics
2 answers:
morpeh [17]3 years ago
4 0
We're differentiating implicitly which means we're not going to find an explicit function y(x) before differentiating.

Simply power rule each term and don't forget to chain on the y. Since it's not x, we end up with this extra derivative thing y'.

\rm 3x^2+2y^2=10
\rm 6x+4yy'=0

Plug in x and y,

\rm 6(1)+4\sqrt{3.5}~y'=0

and solve for y',

\rm y'(x)=\dfrac{-6}{4\sqrt{3.5}}

Hope that helps.
Troyanec [42]3 years ago
3 0
3x^2 + 2y^2=10

d/d(x)= 6x+4y=0

Substitute x coordinate x=1

6(1)+4y'=0
6=-4y'
6/-4=y'
y'= -3/2

therefore the derivative of the function at x=1 is -1.5 or -3/2
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