Connections Between Function Features And Limits

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| By I-heng_mccomb
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  • 1/5 Questions

    Which existence theorem allows use to use guess-and-check to solve equations which can be written in the form F(x) = 0 for a continuous function F?

    • The Intermediate Value Theorem
    • The Mean Value Theorem
    • The Extreme Value Theorem
    • Rolle's Theorem
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About This Quiz

What does different limits information tell us about the features of a function?

Connections Between Function Features And Limits - Quiz

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  • 2. 

    Which of the following must be true if a function f(x) does not have a minimum on an interval [a,b].

    • F(x) must approach negative infinity somewhere in the interval [a,b]

    • F(x) must have a discontinuity on [a,b]

    • F(a) must be greater than f(b)

    • F(x) must have a maximum on the interval [a,b]

    Correct Answer
    A. F(x) must have a discontinuity on [a,b]
    Explanation
    If a function does not have a minimum on an interval [a, b], it means that the function either constantly increases or constantly decreases throughout the interval. In other words, there are no points where the function reaches a local minimum. Therefore, there must be a point of discontinuity in the function on the interval [a, b]. This is because if the function is continuous throughout the interval, it would have to reach a minimum at some point.

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  • 3. 

    Select all the places to look for extreme points (maxima, minima):

    • Where the instantaneous rate of change is zero

    • Where the instantaneous rate of change does not exist

    • At the endpoints of the interval of interest

    • Where the function value is zero

    Correct Answer(s)
    A. Where the instantaneous rate of change is zero
    A. Where the instantaneous rate of change does not exist
    A. At the endpoints of the interval of interest
    Explanation
    Extreme points (maxima, minima) occur at places where the instantaneous rate of change is zero, as well as where the instantaneous rate of change does not exist. This is because at these points, the slope of the function is either flat (zero rate of change) or undefined (non-existent rate of change), indicating a potential extreme point. Additionally, extreme points can also occur at the endpoints of the interval of interest, as these are the boundaries of the function's behavior. The function value being zero does not necessarily indicate an extreme point, as it could be a point of intersection or a regular point on the graph.

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  • 4. 
    Select all the correct statements about extreme points of the function in the graph. - ProProfs

    Select all the correct statements about extreme points of the function in the graph.

    • The absolute minimum value is 0.

    • The absolute maximum value is 14/3.

    • There is a relative minimum between x=–5 and x=–4.

    • There is one point which is a relative maximum where the instantaneous rate of change is zero.

    • The instantaneous rate of change does not exist at x=–3 and there is a relative maximum there.

    • (1,1) is a relative maximum point.

    • The left end point is a relative maximum.

    Correct Answer(s)
    A. There is a relative minimum between x=–5 and x=–4.
    A. There is one point which is a relative maximum where the instantaneous rate of change is zero.
    A. The left end point is a relative maximum.
    Explanation
    The given correct statements about extreme points of the function in the graph are:
    - There is a relative minimum between x=-5 and x=-4.
    - There is one point which is a relative maximum where the instantaneous rate of change is zero.
    - The left end point is a relative maximum.

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  • Current Version
  • Mar 20, 2023
    Quiz Edited by
    ProProfs Editorial Team
  • Aug 30, 2020
    Quiz Created by
    I-heng_mccomb
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