3. Below is the graph of y = f'(x), which is the derivative for some function f. Using the graph of the derivative of f, determine the following. If any cannot be determined based on the graph alone, explain why. y =f'(x) BE CAREFUL WHEN USING [ ] OR ( ) IN INTERVAL NOTATION. a. The number of critical points of f b. The intervals on which f is increasing 5 c. The intervals on which f is concave up d. The x values where f has a local minimum %24

Trigonometry (MindTap Course List)
10th Edition
ISBN:9781337278461
Author:Ron Larson
Publisher:Ron Larson
ChapterP: Prerequisites
SectionP.6: Analyzing Graphs Of Functions
Problem 6ECP: Find the average rates of change of f(x)=x2+2x (a) from x1=3 to x2=2 and (b) from x1=2 to x2=0.
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(Please only solve using the given formulas in the second attachment) Thank you

 

(P3.1)

EXTREMA AND CRITICAL POINTS
c is a critical point of fif either f'(c) = 0 or f'(c) does not exist.
f(c) is an absolute maximum value of fiff (c) >f(x) for all x in the domain of f.
f(c) is an absolute minimum value of fif f(c) < f(x) for all x in the domain of f.
f(c) is a relative minimum value of fiff(c) 2 f (x) for all x near c.
f(c) is a relative maximum value of fiff(c) < f(x) for all x near c.
EXTREME VALUE THEOREM
FERMAT’S THEOREM
If fis continuous on a closed and bounded interval [a, b], then f
Iff(c) is a relative maximum or minimum value, then f'(c) = 0
attains a maximum and minimum on the interval.
ROLLE'S THEOREM
MEAN VALUE THEOREM
Let f be a function which satisfies the following:
Let f be a function which satisfies the following:
1. fis continuous on the closed interval [a, b].
1. fis continuous on the closed interval [a, b].
2. fis differentiable on the open interval (a, b).
2. fis differentiable on the open interval (a, b).
3. f(a) = f (b).
Then there is some c in the interval (a, b) where
Then there is some c in the interval (a, b) where f'(c) = 0.
f(a) – f(b)
f'(c) =
а —Ь
CALCULUS AND GRAPHS
If f'(x) > 0 on some interval (a,b), then f is increasing on (a, b).
If f'(x) < 0 on some interval (a,b), then f is decreasing on (a, b).
First Derivative Test:
Suppose c is a critical point of some function f.
a. Iff' changes from positive to negative at c, then f(c) is a relative maximum.
b. Iff' changes from negative to positive at c, then f(c) is a relative minimum.
c. If the sign of f' does not change while passing c, then f(c) is neither a maximum nor a minimum (it is a saddle point).
If f"(x) > 0 on some interval (a,b), then fis concave up on (a, b).
If f"(x) <0 on some interval (a, b), then f is concave down on (a, b).
Second Derivative Test:
Suppose c is a critical point of some function f.
a. If f"(c) < 0, then f(c) is a relative maximum.
b. If f"(c) > 0, then f(c) is a relative minimum.
c. If f"(c) = 0, then the test is inconclusive. (Could be a maximum, minimum, or saddle).
L’HOPTIAL’S RULE
AREA APPROXIMATION
ƒ(x)
takes either the
The area under a curve can be approximated using rectangles with
either right or left endpoints. You can subdivide an interval [a, b]
Iff and g are differentiable near a and lim =
x-a g(x)
00
or
then
b - a
for n rectangles by taking segments of length -
indeterminate form
00
f(x)
lim
f'(x)
= lim
x-a g'(x)
f(x)dx = lim
f(x*)Ax.
X-a g(x)
n00
i=1
Transcribed Image Text:EXTREMA AND CRITICAL POINTS c is a critical point of fif either f'(c) = 0 or f'(c) does not exist. f(c) is an absolute maximum value of fiff (c) >f(x) for all x in the domain of f. f(c) is an absolute minimum value of fif f(c) < f(x) for all x in the domain of f. f(c) is a relative minimum value of fiff(c) 2 f (x) for all x near c. f(c) is a relative maximum value of fiff(c) < f(x) for all x near c. EXTREME VALUE THEOREM FERMAT’S THEOREM If fis continuous on a closed and bounded interval [a, b], then f Iff(c) is a relative maximum or minimum value, then f'(c) = 0 attains a maximum and minimum on the interval. ROLLE'S THEOREM MEAN VALUE THEOREM Let f be a function which satisfies the following: Let f be a function which satisfies the following: 1. fis continuous on the closed interval [a, b]. 1. fis continuous on the closed interval [a, b]. 2. fis differentiable on the open interval (a, b). 2. fis differentiable on the open interval (a, b). 3. f(a) = f (b). Then there is some c in the interval (a, b) where Then there is some c in the interval (a, b) where f'(c) = 0. f(a) – f(b) f'(c) = а —Ь CALCULUS AND GRAPHS If f'(x) > 0 on some interval (a,b), then f is increasing on (a, b). If f'(x) < 0 on some interval (a,b), then f is decreasing on (a, b). First Derivative Test: Suppose c is a critical point of some function f. a. Iff' changes from positive to negative at c, then f(c) is a relative maximum. b. Iff' changes from negative to positive at c, then f(c) is a relative minimum. c. If the sign of f' does not change while passing c, then f(c) is neither a maximum nor a minimum (it is a saddle point). If f"(x) > 0 on some interval (a,b), then fis concave up on (a, b). If f"(x) <0 on some interval (a, b), then f is concave down on (a, b). Second Derivative Test: Suppose c is a critical point of some function f. a. If f"(c) < 0, then f(c) is a relative maximum. b. If f"(c) > 0, then f(c) is a relative minimum. c. If f"(c) = 0, then the test is inconclusive. (Could be a maximum, minimum, or saddle). L’HOPTIAL’S RULE AREA APPROXIMATION ƒ(x) takes either the The area under a curve can be approximated using rectangles with either right or left endpoints. You can subdivide an interval [a, b] Iff and g are differentiable near a and lim = x-a g(x) 00 or then b - a for n rectangles by taking segments of length - indeterminate form 00 f(x) lim f'(x) = lim x-a g'(x) f(x)dx = lim f(x*)Ax. X-a g(x) n00 i=1
3. Below is the graph of y = f'(x), which is the derivative for some function f. Using the graph of the derivative of f,
determine the following. If any cannot be determined based on the graph alone, explain why.
y =f'(x)
BE CAREFUL WHEN USING [ ] OR ( ) IN INTERVAL NOTATION.
a. The number of critical points of f
b. The intervals on which f is increasing
5
5
c. The intervals on which f is concave up
d. The x values where f has a local minimum
5
Transcribed Image Text:3. Below is the graph of y = f'(x), which is the derivative for some function f. Using the graph of the derivative of f, determine the following. If any cannot be determined based on the graph alone, explain why. y =f'(x) BE CAREFUL WHEN USING [ ] OR ( ) IN INTERVAL NOTATION. a. The number of critical points of f b. The intervals on which f is increasing 5 5 c. The intervals on which f is concave up d. The x values where f has a local minimum 5
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