What is the Derivative of a Cubic Function with a Given Value of x?

In summary, differentiation is a mathematical concept used to find the instantaneous rate of change of a function. It is important because it allows us to analyze and understand the behavior of functions and has numerous real-life applications in fields such as physics, economics, and engineering. To differentiate a function, one must use rules such as the power rule and chain rule. It can also be used to solve problems and has applications in advanced calculus concepts.
  • #1
b521
10
0

Homework Statement



If y = x³ + 2x
and
dx/dt = 5,
find
dy/dt when x = 2.


The Attempt at a Solution



I'm not really sure how to solve this problem at all. It's the first I've seen like this so I don't know what approach I should take.
 
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  • #2


Use the chain rule in the form:
[tex]
\frac{dy}{dt}=\frac{dy}{dx}\frac{dx}{dt}
[/tex]
 
  • #3


Thank you so much!
 

FAQ: What is the Derivative of a Cubic Function with a Given Value of x?

What is differentiation?

Differentiation is a mathematical concept that involves finding the instantaneous rate of change of a function. It is a fundamental tool in calculus and is used to find the slope of a curve at a specific point.

Why is differentiation important?

Differentiation is important because it allows us to analyze and understand the behavior of functions. It is used in many real-life applications, such as in physics, economics, and engineering, to model and predict the behavior of systems.

How do you differentiate a function?

To differentiate a function, you need to use the rules of differentiation, which include the power rule, product rule, quotient rule, and chain rule. These rules allow you to find the derivative of a function at any point.

Can differentiation be used to solve problems?

Yes, differentiation can be used to solve various problems, such as finding the maximum or minimum value of a function, determining the rate of change of a system, and optimizing functions. It is a powerful tool in problem-solving and critical thinking.

What are the applications of differentiation?

Differentiation has numerous applications in various fields, including physics, economics, biology, and engineering. It is used to model and analyze systems, make predictions, and optimize functions. It is also used in advanced calculus concepts, such as integration and differential equations.

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