Differentiation Rules

Choose a study mode

Play Quiz
Study Flashcards
Spaced Repetition
Chat to Lesson

Podcast

Play an AI-generated podcast conversation about this lesson
Download our mobile app to listen on the go
Get App

Questions and Answers

What does the average rate of change represent graphically?

  • The area under the curve
  • The slope of the tangent line
  • The slope of the secant line (correct)
  • The second derivative of the function

According to the power rule, what is the derivative of $f(x) = x^n$?

  • $f'(x) = x^n$
  • $f'(x) = nx^{n-1}$ (correct)
  • $f'(x) = nx^{n+1}$
  • $f'(x) = x^{n-1}$

If $y = f(u)$ and $u = g(x)$, according to the chain rule (Leibniz form), what is $\frac{dy}{dx}$?

  • $\frac{dy}{dx} = \frac{du}{dx}$
  • $\frac{dy}{dx} = \frac{dy}{dx} \cdot \frac{du}{dy}$
  • $\frac{dy}{dx} = \frac{dx}{du} \cdot \frac{dy}{du}$
  • $\frac{dy}{dx} = \frac{dy}{du} \cdot \frac{du}{dx}$ (correct)

If $y = c \cdot f(x)$, where c is a constant, what is $y'$?

<p>$y' = c \cdot f'(x)$ (B)</p> Signup and view all the answers

What is the derivative of a constant function $f(x) = c$?

<p>$f'(x) = 0$ (A)</p> Signup and view all the answers

Given $y = f \cdot g$, what is $y'$ according to the product rule?

<p>$y' = f \cdot g' + g \cdot f'$ (C)</p> Signup and view all the answers

If $y = \frac{f}{g}$, what is $y'$?

<p>$y' = \frac{g \cdot f' - f \cdot g'}{g^2}$ (C)</p> Signup and view all the answers

If $y = f + g$, what is $y'$?

<p>$y' = f' + g'$ (B)</p> Signup and view all the answers

Given the function $f(x) = 4x^3 - 5x$, what is the average rate of change from $x = 0$ to $x = 2$?

<p>11 (B)</p> Signup and view all the answers

What is the instantaneous rate of change of a function at a point equivalent to?

<p>The slope of the tangent line at that point (D)</p> Signup and view all the answers

Find dy/dx if $y = x^7 + 3x^2 - 5x + 6 $

<p>$7x^6 + 6x - 5$ (A)</p> Signup and view all the answers

What is the equivalent of $x^{-n}$?

<p>$\frac{1}{x^n}$ (B)</p> Signup and view all the answers

Determine the average rate of change of $y = x(x-1)^2$ from $x = -1$ to $x = 2$.

<p>2 (A)</p> Signup and view all the answers

What is the slope of the tangent line for the function $f(x) = 4x^2 - 7$ at the point (3,5)?

<p>24 (C)</p> Signup and view all the answers

What is the slope of the tangent line for the function $y = -2x^2(x - 3)$ at $x = 1$?

<p>6 (C)</p> Signup and view all the answers

If a ball's height is given by $h(t) = -12t^2 + 75t$, what is the velocity of the ball at $t = 3$ seconds?

<p>3 ft/sec (A)</p> Signup and view all the answers

Determine the derivative of the function $f(x) = 2x(x^2 + 4)$.

<p>$f'(x) = 6x^2 + 8$ (B)</p> Signup and view all the answers

Find the derivative of $y = x^3 - 5x^{-2}$.

<p>$y' = 3x^2 + 10x^{-3}$ (C)</p> Signup and view all the answers

Simplify the expression $\frac{x^n}{x^m}$

<p>$x^{n-m}$ (D)</p> Signup and view all the answers

Simplify the expression $(x^n)^m$

<p>$x^{nm}$ (A)</p> Signup and view all the answers

Flashcards

Average Rate of Change

The slope of the secant line between two points on a curve. Calculated as (f(b) - f(a)) / (b - a).

Instantaneous Rate of Change

The slope of the tangent line at a single point on a curve. It represents the instantaneous rate of change of the function.

Constant Function Rule

The derivative of a constant function is always zero.

Power Rule

If f(x) = x^n, then f'(x) = nx^(n-1). Multiply by the exponent and reduce the exponent by one.

Signup and view all the flashcards

Constant Multiple Rule

If y = c * f(x), then y' = c * f'(x). The constant remains multiplied by the derivative.

Signup and view all the flashcards

Sum and Difference Rule

The derivative of a sum or difference of functions is the sum or difference of their derivatives: y' = f' + g'

Signup and view all the flashcards

Product Rule

The derivative of a product of two functions rule is: y' = f' * g + f * g'.

Signup and view all the flashcards

Quotient Rule

The derivative of a quotient of two functions. y' = (g * f' - f * g') / g^2

Signup and view all the flashcards

Power of a Function Rule

If y = [g(x)]^n, then y' = n[g(x)]^(n-1) * g'(x).

Signup and view all the flashcards

Chain Rule

Chain Rule is a formula for finding the derivative of a composite function. F'(x) = f'(g(x)) * g'(x).

Signup and view all the flashcards

Study Notes

Differentiation Overview

  • Differentiation is the rate of change, slope of a tangent line, and utilizes rules of differentiation

Average Rate of Change

  • The average rate of change is the slope of the secant line
  • Formula: Δy/Δx = (f(b) – f(a))/(b-a)

Instantaneous Rate of Change

  • The instantaneous rate of change is the slope of the tangent line
  • Formula: dy/dx = lim h→0 (f(a + h) – f(a))/h
  • The slope of the tangent line is the same as the derivative of the function.

Rules of Differentiation

  • Constant Function: If f(x) = c, then f'(x) = 0
  • Power Rule: If f(x) = x^n, then f'(x) = nx^(n-1)
  • Constant Multiple Rule: If y = c * f(x), then y' = c * f'(x)
  • Sum and Difference Rule: If y = f + g, then y' = f' + g'
  • Product Rule: If y = f * g, then y' = f * g' + g * f'
  • Quotient Rule: If y = f/g, then y' = (gf' - fg') / g^2
  • Power of a Function Rule: If y = [g(x)]^n, then y' = n[g(x)]^(n-1) * g'(x)
  • Chain Rule: If F(x) = f(g(x)), then F'(x) = f'(g(x)) * g'(x)
  • Leibniz Form of Chain Rule: If y = f(u) and u = g(x), then dy/dx = (dy/du) * (du/dx)

Laws of Exponents (Recall)

  • x^n * x^m = x^(n+m)
  • x^n / x^m = x^(n-m)
  • (x^n)^m = x^(nm)
  • (ab)^n = a^n * b^n
  • (a/b)^n = a^n / b^n
  • x^0 = 1
  • x^(-n) = 1 / x^n
  • x^(m/n) = nth root of (x^m)

Guided Practice Examples

  • Finding the average rate of change for f(x) = 4x^3 – 5x from x = 0 to x = 2 yields a result of 11.
  • Finding the average rate of change for y = x(x – 1)^2 from x = -1 to x = 2 yields a result of 2.
  • The slope of the line tangent to y = x^3 – 5x^(-2) is y' = 3x^2 + 10/x^3
  • The slope of the line tangent to f(x) = 2x(x^2 + 4) is f'(x) = 2(3x^2 + 4)
  • The slope of the tangent line for f(x) = 4x^2 – 7 at point (3,5) is m = 24.
  • The slope of the tangent line for y = −2x^2(x − 3) at x = 1 is m = 6.
  • Given a ball's height with respect to time: h(t) = -12t^2 + 75t (h in feet, t in seconds.) The ball is moving at 3 ft/sec at t = 3 seconds.

Studying That Suits You

Use AI to generate personalized quizzes and flashcards to suit your learning preferences.

Quiz Team

Related Documents

More Like This

Use Quizgecko on...
Browser
Browser