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study help
mathematics
precalculus
Questions and Answers of
Precalculus
Find the second derivative of the function.f(x) = 4x5 − 2x3 + 5x2
Describe the Test for Increasing and Decreasing Functions in your own words.
Name several of the concepts you have learned that are useful for analyzing the graph of a function.
Describe the Test for Concavity in your own words.
Describe the First Derivative Test in your own words.
The graph of f is shown. State the signs of f′ and f″ on the interval (0, 2). f 2
What does it mean for the graph of a function to have a horizontal asymptote?
Describe the Second Derivative Test in your own words.
Which type of function can have a slant asymptote? How do you determine the equation of a slant asymptote?
A graph can have a maximum of how many horizontal asymptotes? Explain.
What are the maximum numbers of relative extrema and points of inflection that a fifth-degree polynomial can have? Explain.
In your own words, summarize the guidelines for finding limits at infinity of rational functions.
Determine the open intervals on which the graph of the function is concave upward or concave downward. f(x) = 24 x² + 12
Analyze and sketch a graph of the function. Label any intercepts, relative extrema, points of inflection, and asymptotes. Use a graphing utility to verify your results. y = 1 x-2 - 3
Determine the open intervals on which the graph of the function is concave upward or concave downward.f(x) = x2 − 4x + 8
Determine the open intervals on which the graph of the function is concave upward or concave downward. f(x) x-2 6x + 1
Analyze and sketch a graph of the function. Label any intercepts, relative extrema, points of inflection, and asymptotes. Use a graphing utility to verify your results. y X 1- x
Analyze and sketch a graph of the function. Label any intercepts, relative extrema, points of inflection, and asymptotes. Use a graphing utility to verify your results. y || 12 x² + 1
Determine the open intervals on which the graph of the function is concave upward or concave downward.f(x) = x4 − 3x3
Find each limit, if it exists.(a)(b)(c) 3 - 2x lim x-∞ 3x³ - 1
Analyze and sketch a graph of the function. Label any intercepts, relative extrema, points of inflection, and asymptotes. Use a graphing utility to verify your results. y = x + 1 X x² - 4
Determine the open intervals on which the graph of the function is concave upward or concave downward. 1 I - zx I + zx (x) f
Find each limit, if it exists.(a)(b)(c) lim 5- 2³/2 3x² - 4
Determine the open intervals on which the graph of the function is concave upward or concave downward. f(x) = x + 8 x - 7
Analyze and sketch a graph of the function. Label any intercepts, relative extrema, points of inflection, and asymptotes. Use a graphing utility to verify your results. y = x - 4 3 x -
Determine the open intervals on which the graph of the function is concave upward or concave downward. y = 2x - tan x, II II 2' 2
Analyze and sketch a graph of the function. Label any intercepts, relative extrema, points of inflection, and asymptotes. Use a graphing utility to verify your results. y = 2 x² X -2 x² + 3
Analyze and sketch a graph of the function. Label any intercepts, relative extrema, points of inflection, and asymptotes. Use a graphing utility to verify your results. y || 2x 9-1²
Determine the open intervals on which the graph of the function is concave upward or concave downward. h(x) f-1 2x - 1
Find lim x→∞ h(x), if it exists.f(x) = 5x3 − 3 (a) h(x) = f(x)/x2(b) h(x) = f(x)/x3(c) h(x) = f(x)/x4
Find the open intervals on which the function is increasing or decreasing. f(x): = COS 3x 2' 0 < x < 2
Find lim x→∞ h(x), if it exists.f(x) = −4x2 + 2x − 5(a) h(x) = f(x)/x(b) h(x) = f(x)/x2(c) h(x) = f(x)/x3
Determine the open intervals on which the graph of the function is concave upward or concave downward. y = x + 7:/N sin x (-n, n)
Analyze and sketch a graph of the function. Label any intercepts, relative extrema, points of inflection, and asymptotes. Use a graphing utility to verify your results. y = 3 + 2 X
Find the open intervals on which the function is increasing or decreasing.y = x√16 − x2
Analyze and sketch a graph of the function. Label any intercepts, relative extrema, points of inflection, and asymptotes. Use a graphing utility to verify your results. f(x) = x + 32 X
Analyze and sketch a graph of the function. Label any intercepts, relative extrema, points of inflection, and asymptotes. Use a graphing utility to verify your results. f(x) = x-3 Xx
Analyze and sketch a graph of the function. Label any intercepts, relative extrema, points of inflection, and asymptotes. Use a graphing utility to verify your results. y 4 X² + 1
Find the open intervals on which the function is increasing or decreasing.y = x − 2 cos x, 0 < x < 2
Analyze and sketch a graph of the function. Label any intercepts, relative extrema, points of inflection, and asymptotes. Use a graphing utility to verify your results. y = x² - 6x + 12 -2 x - 4 X
Find the points of inflection and discuss the concavity of the graph of the function.f(x) = x3 − 9x2 + 24x − 18
Analyze and sketch a graph of the function. Label any intercepts, relative extrema, points of inflection, and asymptotes. Use a graphing utility to verify your results. f(x) x³ x² - 9
Find the open intervals on which the function is increasing or decreasing.f(x) = sin2 x + sin x, 0 < x < 2
Analyze and sketch a graph of the function. Label any intercepts, relative extrema, points of inflection, and asymptotes. Use a graphing utility to verify your results. y || 13 x² - 4
Find the points of inflection and discuss the concavity of the graph of the function.f(x) = 2 − 7x4
(a) Find the critical numbers of f, if any,(b) Find the open intervals on which the function is increasing or decreasing,(c) Apply the First Derivative Test to identify all relative extrema f(x) = x2
(a) Find the critical numbers of f, if any,(b) Find the open intervals on which the function is increasing or decreasing,(c) Apply the First Derivative Test to identify all relative extrema f(x) = x5
(a) Find the critical numbers of f, if any,(b) Find the open intervals on which the function is increasing or decreasing,(c) Apply the First Derivative Test to identify all relative extrema.(d) Use a
Analyze and sketch a graph of the function. Label any intercepts, relative extrema, points of inflection, and asymptotes. Use a graphing utility to verify your results. y X x² - 4
(a) Find the critical numbers of f, if any,(b) Find the open intervals on which the function is increasing or decreasing,(c) Apply the First Derivative Test to identify all relative extrema f(x) =
(a) Find the critical numbers of f, if any,(b) Find the open intervals on which the function is increasing or decreasing,(c) Apply the First Derivative Test to identify all relative extrema.(d) Use a
(a) Find the critical numbers of f, if any,(b) Find the open intervals on which the function is increasing or decreasing,(c) Apply the First Derivative Test to identify all relative extremaf (x) =
(a) Find the critical numbers of f, if any,(b) Find the open intervals on which the function is increasing or decreasing,(c) Apply the First Derivative Test to identify all relative extrema, and(d)
(a) Find the critical numbers of f, if any,(b) Find the open intervals on which the function is increasing or decreasing,(c) Apply the First Derivative Test to identify all relative extrema, and(d)
Find the points of inflection and discuss the concavity of the graph of the function.f(x) = 6 − x /√x
(a) Find the critical numbers of f, if any,(b) Find the open intervals on which the function is increasing or decreasing,(c) Apply the First Derivative Test to identify all relative extrema f(x) = 2x
Analyze and sketch a graph of the function. Label any intercepts, relative extrema, points of inflection, and asymptotes. Use a graphing utility to verify your results.y = x√4 − x
(a) Find the critical numbers of f, if any,(b) Find the open intervals on which the function is increasing or decreasing,(c) Apply the First Derivative Test to identify all relative extremaf(x) = (x
(a) Find the critical numbers of f, if any,(b) Find the open intervals on which the function is increasing or decreasing,(c) Apply the First Derivative Test to identify all relative extrema, and(d)
Analyze and sketch a graph of the function. Label any intercepts, relative extrema, points of inflection, and asymptotes. Use a graphing utility to verify your results.g(x) = x√9 − x2
Analyze and sketch a graph of the function. Label any intercepts, relative extrema, points of inflection, and asymptotes. Use a graphing utility to verify your results.y = 2 − x − x3
(a) Find the critical numbers of f, if any,(b) Find the open intervals on which the function is increasing or decreasing,(c) Apply the First Derivative Test to identify all relative extrema f(x) =
(a) Find the critical numbers of f, if any,(b) Find the open intervals on which the function is increasing or decreasing,(c) Apply the First Derivative Test to identify all relative extrema, and(d)
(a) Find the critical numbers of f, if any,(b) Find the open intervals on which the function is increasing or decreasing,(c) Apply the First Derivative Test to identify all relative extrema f(x) = (x
(a) Find the critical numbers of f, if any,(b) Find the open intervals on which the function is increasing or decreasing,(c) Apply the First Derivative Test to identify all relative extrema, and(d)
Analyze and sketch a graph of the function over the given interval. Label any intercepts, relative extrema, points of inflection, and asymptotes. Use a graphing utility to verify your results.
(a) Find the critical numbers of f, if any,(b) Find the open intervals on which the function is increasing or decreasing,(c) Apply the First Derivative Test to identify all relative extremaf(x) = 5
(a) Find the critical numbers of f, if any,(b) Find the open intervals on which the function is increasing or decreasing,(c) Apply the First Derivative Test to identify all relative extrema, and(d)
(a) Find the critical numbers of f, if any,(b) Find the open intervals on which the function is increasing or decreasing,(c) Apply the First Derivative Test to identify all relative extrema
Analyze and sketch a graph of the function. Label any intercepts, relative extrema, points of inflection, and asymptotes. Use a graphing utility to verify your results.xy2 = 9
(a) Use a computer algebra system to differentiate the function,(b) Sketch the graphs of f and f′ on the same set of coordinate axes over the given interval,(c) Find the critical numbers of f in
(a) Find the critical numbers of f, if any,(b) Find the open intervals on which the function is increasing or decreasing,(c) Apply the First Derivative Test to identify all relative extrema, and(d)
(a) Find the critical numbers of f, if any,(b) Find the open intervals on which the function is increasing or decreasing,(c) Apply the First Derivative Test to identify all relative extrema, and(d)
(a) Find the critical numbers of f, if any,(b) Find the open intervals on which the function is increasing or decreasing,(c) Apply the First Derivative Test to identify all relative extrema
The graph ofis shown (see figure).(a) Find L = lim x→∞ f(x).(b) Determine x1 and x2 in terms of ε.(c) Determine M, where M > 0, such that ∣ f(x) − L∣ M.(d) Determine N, where N f(x)
(a) Find the critical numbers of f, if any,(b) Find the open intervals on which the function is increasing or decreasing,(c) Apply the First Derivative Test to identify all relative extrema, and(d)
The graph of f is shown. Graph f, f′, and f ″ on the same set of coordinate axes. To print an enlarged copy of the graph, go to MathGraphs.com. 3 12 -1 y 1 2 3
Consider the function on the interval (0, 2π).(a) Find the open intervals on which the function is increasing or decreasing.(b) Apply the First Derivative Test to identify all relative extrema.f(x)
Analyze and sketch a graph of the function. Label any intercepts, relative extrema, points of inflection, and asymptotes. Use a graphing utility to verify your results.x2 y = 9
Find all relative extrema of the function. Use the Second Derivative Test where applicable. f(x) 9x - 1 x + 5
Find all relative extrema of the function. Use the Second Derivative Test where applicable.f(x) = −x4 + 2x3 + 8x
Find the absolute extrema of the function on the closed interval.y = 3 cos x, [0, 2 ]
Sketch the graph of a function f having the given characteristics. f(0) = f(2) = 0 f'(x) > 0 for x < 1 f'(1) = 0 f'(x) < 0 for x > 1 f"(x) < 0
Consider a function f such that f′ is increasing. Sketch graphs of f for(a) f′ < 0 and(b) f′ > 0.
Sketch the graph of a function f having the given characteristics. ƒ(2) = f(4) = 0 f'(x) < 0 for x < 3 f'(3) does not exist. f'(x) > 0 for x > 3 f"(x) < 0, x # 3
(a) Use a computer algebra system to differentiate the function,(b) Sketch the graphs of f and f′ on the same set of coordinate axes over the given interval,(c) Find the critical numbers of f in
The figure shows the graph of f″. Sketch a graph of f. (The answer is not unique.) To print an enlarged copy of the graph, go to MathGraphs.com. 6 543255 1 -1 y f 1 2 3 4 5 X
The graph of f is shown in the figure. Sketch a graph of the derivative of f. To print an enlarged copy of the graph, go to MathGraphs.com. -2 - 1 4 2 1 y f 12 x
Find the limit. Use a graphing utility to verify your result.lim x→−∞ (x + √x2 + 3)
The annual sales S of a new product are given bywhere t is time in years.(a) Complete the table. Then use it to estimate when the annual sales are increasing at the greatest rate.(b) Use a graphing
Find the limit. Use a graphing utility to verify your result.lim x→∞ (x − √x2 + x)
Find the limit. Use a graphing utility to verify your result.lim x→−∞ (3x + √9x2 − x)
(a) Use a computer algebra system to differentiate the function,(b) Sketch the graphs of f and f′ on the same set of coordinate axes over the given interval,(c) Find the critical numbers of f in
Sketch the graph of a function f having the given characteristics. f(0) = f(2)= 0 f'(x) < 0 for x < 1 f'(1) = 0 f'(x) > 0 for x > 1 f"(x) > 0
Find the limit. Use a graphing utility to verify your result.lim x→∞ (4x − √16x2 − x)
Consider(a) Use the definition of limits at infinity to find the value of M that corresponds to ε = 0.5.(b) Use the definition of limits at infinity to find the value of M that corresponds to ε =
Sketch the graph of a function f having the given characteristics. f(1) = f(3) = 0 f'(x) > 0 for x < 2 f'(2) does not exist. f'(x) < 0 for x > 2 f"(x) > 0, x # 2
The graph ofis shown (see figure).(a) Find L = lim x→∞ f(x) and K = lim x→−∞ f(x).(b) Determine x1 and x2 in terms of ε.(c) Determine M, where M > 0, such that ∣ f(x) − L∣ M.(d)
The graph of f is shown in the figure. Sketch a graph of the derivative of f. To print an enlarged copy of the graph, go to MathGraphs.com. -2 -1 2 1 y If 1 23 X
Explain the differences between limits at infinity and infinite limits.
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