Implicit differentiation to find the slope

In summary, implicit differentiation is a mathematical technique used to find the slope of a curve when it is not possible or convenient to express the curve as a function of a single variable. It is used when the given equation cannot be easily manipulated to express the dependent variable in terms of a single independent variable and when finding the slope of a curve that is not explicitly defined as a function. It differs from explicit differentiation in that the dependent variable is not explicitly defined as a function and the steps for using it to find the slope involve differentiating both sides of the equation and solving for the derivative. It can be used for any type of equation, but is most commonly used for finding the slope of curves that cannot be expressed as a function.
  • #1
fishingspree2
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0

Homework Statement



[tex](x - h)^2 + (y - k)^2 = r^2[/tex]
where h,k and r are constants

The Attempt at a Solution



[tex]
\begin{array}{l}
\frac{d}{{dx}}\left[ {(x - h)^2 + (y - k)^2 } \right] = \frac{d}{{dx}}r^2 \\
2(x - h) + 2\frac{{dy}}{{dx}}(y - k) = 0 \\
\Rightarrow \frac{{dy}}{{dx}} = - \frac{{(x - h)}}{{(y - k)}} \\
\end{array}[/tex]

Is my work correct?
Thank you
 
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  • #2
looks good to me =P
 
  • #3
Yeah it seems all right.
 

Related to Implicit differentiation to find the slope

1. What is implicit differentiation?

Implicit differentiation is a mathematical technique used to find the slope of a curve when it is not possible or convenient to express the curve as a function of a single variable. It involves differentiating both sides of an equation with respect to a common variable and then solving for the derivative of the given function.

2. When is implicit differentiation used?

Implicit differentiation is used when the given equation cannot be easily manipulated to express the dependent variable in terms of a single independent variable. It is also used when finding the slope of a curve that is not explicitly defined as a function, such as circles, ellipses, or other conic sections.

3. How is implicit differentiation different from explicit differentiation?

In explicit differentiation, the dependent variable is directly expressed as a function of the independent variable, making it easier to find the derivative. In implicit differentiation, the dependent variable is not explicitly defined as a function, so the derivative must be found by differentiating both sides of the equation and solving for the derivative.

4. What are the steps for using implicit differentiation to find the slope?

The steps for using implicit differentiation to find the slope are:
1. Differentiate both sides of the equation with respect to the common variable.
2. Simplify the resulting equation by combining like terms.
3. Solve for the derivative of the given function by isolating the derivative on one side of the equation.

5. Can implicit differentiation be used for any type of equation?

Yes, implicit differentiation can be used for any type of equation as long as there is a common variable on both sides of the equation. However, it is most commonly used for finding the slope of curves that cannot be expressed as a function, such as circles, ellipses, or other conic sections.

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