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The derivative of a function describes the function's instantaneous rate of change at a certain point. Another common interpretation is that the derivative gives us the slope of the line tangent to the function's graph at that point. Learn how we define the derivative using limits. Learn about a bunch of very useful rules (like the power, product, and quotient rules) that help us find ...
- Secant Lines
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- Product Rule
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- Differentiate Products
Find the derivatives of products of basic functions.
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Aug 17, 2024 · Definition: Derivative Function. Let f be a function. The derivative function, denoted by f′, is the function whose domain consists of those values of x such that the following limit exists: f′(x) = limh→0 f(x + h) − f(x) h. (3.2.1) A function f(x) is said to be differentiable at a if f′(a) exists.
Nov 20, 2021 · The derivative f ′ (a) at a specific point x = a, being the slope of the tangent line to the curve at x = a, and. The derivative as a function, f ′ (x) as defined in Definition 2.2.6. Of course, if we have f ′ (x) then we can always recover the derivative at a specific point by substituting x = a.
Aug 17, 2024 · the rate of change of a function at any point along the function \(a\), also called \(f′(a)\), or the derivative of the function at \(a\) This page titled 3.1: Defining the Derivative is shared under a CC BY-NC-SA 4.0 license and was authored, remixed, and/or curated by Gilbert Strang & Edwin “Jed” Herman ( OpenStax ) via source content that was edited to the style and standards of the ...
In mathematics, the derivative is a fundamental tool that quantifies the sensitivity of change of a function 's output with respect to its input. The derivative of a function of a single variable at a chosen input value, when it exists, is the slope of the tangent line to the graph of the function at that point.
Nov 16, 2022 · Section 3.1 : The Definition of the Derivative. In the first section of the Limits chapter we saw that the computation of the slope of a tangent line, the instantaneous rate of change of a function, and the instantaneous velocity of an object at x = a x = a all required us to compute the following limit. lim x→a f (x) −f (a) x −a lim x ...
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It means that, for the function x 2, the slope or "rate of change" at any point is 2x. So when x=2 the slope is 2x = 4, as shown here: Or when x=5 the slope is 2x = 10, and so on. Note: f’ (x) can also be used to mean "the derivative of": f’ (x) = 2x. "The derivative of f (x) equals 2x". or simply "f-dash of x equals 2x".
