In Exercises 25–28 the graph of the derivative, f ′ ( x ) , is given. Determine the x-coordinates of all points of inflection of f ( x ) , if any. (Assume that f ( x ) is defined and continuous everywhere in [ − 3 , 3 ] .) [ HINT: See Quick Examples 5 and 6.]
In Exercises 25–28 the graph of the derivative, f ′ ( x ) , is given. Determine the x-coordinates of all points of inflection of f ( x ) , if any. (Assume that f ( x ) is defined and continuous everywhere in [ − 3 , 3 ] .) [ HINT: See Quick Examples 5 and 6.]
Solution Summary: The author explains the x -coordinates of the point of inflection of a function.
In Exercises 25–28 the graph of the derivative,
f
′
(
x
)
, is given. Determine the x-coordinates of all points of inflection of
f
(
x
)
, if any. (Assume that
f
(
x
)
is defined and continuous everywhere in
[
−
3
,
3
]
.) [HINT: See Quick Examples 5 and 6.]
In Exercises 3–10, differentiate the expression with respect to x, assuming
that y is implicitly a function of x.
Each of Exercises 19–24 gives a formula for a function y = f(x). In
each case, find f(x) and identify the domain and range of f¯1.
20. f(x) = x*, x > 0
22. f(x) = (1/2)x – 7/2
24. f(x) = 1/x³, x + 0
19. f(x) = x³
21. f(x) = x³ + 1
23. f(x) = 1/x², x> 0
%3D
In Exercises 13-14, find the domain of each function.
13. f(x) 3 (х +2)(х — 2)
14. g(x)
(х + 2)(х — 2)
In Exercises 15–22, let
f(x) = x? – 3x + 8 and g(x) = -2x – 5.
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