definitions Flashcards

1
Q

Intermediate Value Theorem (IVT)

A

If f continuous on [a,b], the f takes on all values between f(a) and f(b)

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2
Q

Average Rate of Change on the Interval [a,b]

A

AROC = f(b)-f(a) / b-a

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3
Q

Definition of a Vertical Asymptote

A

x = a is a VA of f if lim x->a f(x) = +/- ∞

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4
Q

Definition of a Horizontal Asymptote

A

y = b is a HA of f if lim x->+/- ∞ f(x) = b

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5
Q

Squeeze Theorem

A

Let g(x) ≤ f(x) ≤ h(x) for x ≠ a on some interval about x = a. If lim x->a g(x) = lim x->a h(x) = L, then lim x->a f(x) = L

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6
Q

Definition of Continuity at a Point

A

If lim x->a f(x) = f(a), the f is continuous at x = a

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7
Q

Existence of the Limit of a function

A

lim x->a f(x) = L if and only if lim x->a- f(x) = lim x->a+ f(x) = L

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8
Q

Limit Definition of the Derivative

A

f’(x) = lim h->0 f(x+h)-f(x) / h

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9
Q

Alternate Definition of the Derivative

A

f’(x) = lim x->a f(x) - f(a) / x - a

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10
Q

Mean Value Theorem of Derivative

A

If f continuous on [a,b] and differentiable on (a,b) then there exists a c in (a,b) at which f’(c) = f(b) - f(a) / b - a

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11
Q

Extreme Value Theorem

A

If f is continuous on [a,b] then f has both a min and max on [a,b]

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12
Q

Interior Extremum Theorem

A

If f is differentiable on (a,b) and f has a local max/min on c (a,b), the f’(c) = 0

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13
Q

Monotonic Function

A

A function is monotonic on an interval if it is always increasing or decreasing on the interval

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14
Q

Concavity Definition

A

f is concave up where f’ is increasing and f” > 0

f is concave down where f’ is decreasing and f”<0

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15
Q

Inflection Point Definition

A

A point in the domain of f where there is a tangent line and concanvity changes

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16
Q

Critical Point definition

A

A point at which f’ = 0 or f’ DNE

17
Q

1st Derivative Test

A

If f’ changes + to - at x = c, then f has a local max at x = c
If f’ changes - to + at x = c, then f has a local min at x = c
If f’ does not change sign, there is neither a min nor a max

18
Q

2nd Derivative Test

A

If f’ = 0 and f” > 0 at x = c, then f has a local min at x = c
If f’ = 0 and f” < 0 at x = c, then f has a local max at x = c

19
Q

Points at which f is not differentiable (4)

A

Corner, Cusp, Jump, Infinite discontinuity

20
Q

Stationary Point

A

A point at which f’(x) = 0

21
Q

L’Hospital’s Rule

A

If lim x->a f(x) / g(x) results in 0 / 0 or ∞ / ∞ then lim x->a f(x) / g(x) = lim x->a f’(x) / g’(x)

22
Q

Fundamental Theorem of Calculus Parts 1 and 2

A

the integral from a to b of f(x) dx = F(b) - F(a)

the derivative of the integral from a to x of f(t) dt = f(x)

23
Q

Mean Value Theorem for Integrals

A

If f is continuous on [a,b] then at some point c in [a,b], f(c) = 1 / b-a of the integral a to b of f(x) dx

24
Q

Average Value of a Function

A

1 / b - a from the integral of a to b of f(x) dx

25
Q

Trapezoidal Rule

A

integral from a to b of f(x) dx ≈ h / 2 ( f(a) + 2 f(x₁) + 2 f(x₂) + … + 2 f(xₙ) + f(b) `)

26
Q

Volume

A

π integral a to b of ( f(x) )² dx

π integral a to b of [ ( f(x) )² - ( g(x) )² ] dx