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  1. AP Calculus
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What are the differences between a critical point and a point of inflection?

Critical Point: f′(x)=0f'(x) = 0f′(x)=0 or undefined, potential for max/min. | Point of Inflection: f′′(x)f''(x)f′′(x) changes sign, change in concavity.

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What are the differences between a critical point and a point of inflection?

Critical Point: f′(x)=0f'(x) = 0f′(x)=0 or undefined, potential for max/min. | Point of Inflection: f′′(x)f''(x)f′′(x) changes sign, change in concavity.

What are the differences between relative and absolute extrema?

Relative Extrema: Local max/min within an interval. | Absolute Extrema: Overall max/min over the entire domain.

What are the differences between increasing and concave up?

Increasing: f′(x)>0f'(x) > 0f′(x)>0, function is rising. | Concave Up: f′′(x)>0f''(x) > 0f′′(x)>0, function curves upwards.

What are the differences between decreasing and concave down?

Decreasing: f′(x)<0f'(x) < 0f′(x)<0, function is falling. | Concave Down: f′′(x)<0f''(x) < 0f′′(x)<0, function curves downwards.

What are the differences between the graph of a function and its derivative?

Function: Represents the value of the function at each point. | Derivative: Represents the rate of change of the function at each point.

What is the difference between a definite and an indefinite integral?

Definite Integral: Computes the area under a curve between two limits, resulting in a numerical value. | Indefinite Integral: Finds the antiderivative of a function, resulting in a family of functions.

What is the difference between f′(x)f'(x)f′(x) and ∫f(x)dx\int f(x) dx∫f(x)dx?

f′(x)f'(x)f′(x): The derivative of f(x)f(x)f(x), representing the instantaneous rate of change. | ∫f(x)dx\int f(x) dx∫f(x)dx: The antiderivative of f(x)f(x)f(x), representing the accumulation of f(x)f(x)f(x).

What is the difference between using the first derivative test and the second derivative test to find relative extrema?

First Derivative Test: Examines the sign change of f′(x)f'(x)f′(x) around a critical point. | Second Derivative Test: Uses the sign of f′′(x)f''(x)f′′(x) at a critical point to determine concavity and thus whether it is a max or min.

What is the difference between a local extremum and an endpoint extremum?

Local Extremum: A maximum or minimum within the interior of an interval. | Endpoint Extremum: A maximum or minimum that occurs at the boundary of an interval.

What is the difference between average rate of change and instantaneous rate of change?

Average Rate of Change: The slope of the secant line between two points. | Instantaneous Rate of Change: The slope of the tangent line at a single point, given by the derivative.

Given G(x)=∫axf(t)dtG(x) = \int_a^x f(t) dtG(x)=∫ax​f(t)dt, how do you find where G(x)G(x)G(x) is increasing?

  1. Find G′(x)=f(x)G'(x) = f(x)G′(x)=f(x). 2. Determine where f(x)>0f(x) > 0f(x)>0.

Given G(x)=∫axf(t)dtG(x) = \int_a^x f(t) dtG(x)=∫ax​f(t)dt, how do you find where G(x)G(x)G(x) is concave up?

  1. Find G′(x)=f(x)G'(x) = f(x)G′(x)=f(x). 2. Find G′′(x)=f′(x)G''(x) = f'(x)G′′(x)=f′(x). 3. Determine where f′(x)>0f'(x) > 0f′(x)>0.

Given the graph of f′(x)f'(x)f′(x), how do you find the x-coordinates of inflection points of f(x)f(x)f(x)?

Identify points on the graph of f′(x)f'(x)f′(x) where the slope changes sign (from positive to negative or vice versa).

Given g(x)=f(x)−xg(x) = f(x) - xg(x)=f(x)−x and the graph of f′(x)f'(x)f′(x), how do you find where g(x)g(x)g(x) is decreasing?

  1. Find g′(x)=f′(x)−1g'(x) = f'(x) - 1g′(x)=f′(x)−1. 2. Solve for f′(x)<1f'(x) < 1f′(x)<1. 3. Identify the intervals where f′(x)f'(x)f′(x) is less than 1.

Given g(x)=f(x)−xg(x) = f(x) - xg(x)=f(x)−x and the graph of f′(x)f'(x)f′(x), how do you find the absolute minimum of g(x)g(x)g(x) on [a,b][a, b][a,b]?

  1. Find g′(x)=f′(x)−1g'(x) = f'(x) - 1g′(x)=f′(x)−1. 2. Find critical points where g′(x)=0g'(x) = 0g′(x)=0. 3. Evaluate g(x)g(x)g(x) at critical points and endpoints aaa and bbb. 4. Choose the smallest value.

How to find the area of a region bounded by a curve and the x-axis?

  1. Identify the interval [a, b]. 2. Integrate the function over the interval: ∫abf(x)dx\int_a^b f(x) dx∫ab​f(x)dx. 3. Take the absolute value if the region is below the x-axis.

How to determine if a function f(x)f(x)f(x) has a relative maximum?

  1. Find f′(x)f'(x)f′(x). 2. Find critical points where f′(x)=0f'(x) = 0f′(x)=0 or is undefined. 3. Check if f′(x)f'(x)f′(x) changes from positive to negative at the critical point.

How to determine if a function f(x)f(x)f(x) has a relative minimum?

  1. Find f′(x)f'(x)f′(x). 2. Find critical points where f′(x)=0f'(x) = 0f′(x)=0 or is undefined. 3. Check if f′(x)f'(x)f′(x) changes from negative to positive at the critical point.

How to find the value of f(x)f(x)f(x) at a specific point given f′(x)f'(x)f′(x) and an initial value?

Use the formula: f(x)=f(a)+∫axf′(t)dtf(x) = f(a) + \int_a^x f'(t) dtf(x)=f(a)+∫ax​f′(t)dt, where f(a)f(a)f(a) is the initial value.

How to determine intervals where a function is concave up or concave down?

  1. Find f′′(x)f''(x)f′′(x). 2. Determine where f′′(x)>0f''(x) > 0f′′(x)>0 (concave up) and f′′(x)<0f''(x) < 0f′′(x)<0 (concave down).

What is the Fundamental Theorem of Calculus (Part 1)?

ddx∫axf(t)dt=f(x)\frac{d}{dx} \int_a^x f(t) dt = f(x)dxd​∫ax​f(t)dt=f(x)

What is the formula for area under a curve?

∫abf(x)dx\int_a^b f(x) dx∫ab​f(x)dx

If F(x)=∫axf(t)dtF(x) = \int_a^x f(t) dtF(x)=∫ax​f(t)dt, what is F′(x)F'(x)F′(x)?

F′(x)=f(x)F'(x) = f(x)F′(x)=f(x)

If F(x)=∫axf(t)dtF(x) = \int_a^x f(t) dtF(x)=∫ax​f(t)dt, what is F′′(x)F''(x)F′′(x)?

F′′(x)=f′(x)F''(x) = f'(x)F′′(x)=f′(x)

How to find f(0)f(0)f(0) given f(4)f(4)f(4) and f′(x)f'(x)f′(x)?

f(0)=f(4)−∫04f′(x)dxf(0) = f(4) - \int_0^4 f'(x) dxf(0)=f(4)−∫04​f′(x)dx

How to find f(5)f(5)f(5) given f(4)f(4)f(4) and f′(x)f'(x)f′(x)?

f(5)=f(4)+∫45f′(x)dxf(5) = f(4) + \int_4^5 f'(x) dxf(5)=f(4)+∫45​f′(x)dx

Formula for g′(x)g'(x)g′(x) if g(x)=f(x)−xg(x) = f(x) - xg(x)=f(x)−x?

g′(x)=f′(x)−1g'(x) = f'(x) - 1g′(x)=f′(x)−1

Area of a semicircle?

π2r2\frac{\pi}{2}r^22π​r2

Area of a triangle?

12bh\frac{1}{2}bh21​bh

Area of a rectangle?

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