Monday, October 25, 2010

Week 2 Blog Prompt

What are the different ways a derivative can be interpreted as? So far what have you used the derivative for?

11 comments:

  1. What are the different ways a derivative can be interpreted as?
    -There are many different ways a derivative can be interpreted. Usually a problem does not even say find the derivative, it is going to give you other words and you are just going to have to know it means take the derivative. In everything we learned so far in calculus it dealt with derivatives, so from 1-3 there were plenty of key words used, and different ways a derivative could have been interpreted.

    Here are some of the different ways:
    f'(x)
    dy/dx
    y'
    d/dx [f(x)]
    Dx[y]
    Slope of a tangent line
    Speed
    Velocity
    Acceleration
    Rate of Change
    First derivative test

    What have we used derivatives for?
    1. The limit process
    2. The slope of a tangent line
    3. An instantaneous rate of change
    4. Finding Critical numbers, absolute max’s/min’s, relative max/min’s
    5. Finding the rate of change
    6. Regular Derivatives

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  2. *What are the different ways a derivative can be interpreted as?
    1. First it can be in several different function forms such as:
    f'(x), dy/dx, d/dx, y', [f(x)], etc.
    2. Next, it can be expressed in various phrases, which don't come right out and say "Take the derivative"; it's pretty much just implied or understood..phrases such as:
    -"slope m of the tangent line" or "slope of the graph of the function"=take derivative
    -"find the derivative using the limit process" (although this says "derivative" in it, it tells you to take it the long way.., i.e. f(x+*x)-f(x)/(*x)..where * is delta x. However, you can always use the shorter method, too.
    -"equation of a line that is tangent to the graph of f.." = take the derivative of f, and you'll have to find the slope of the line
    -"alternative form of the derivative" or "use the rules of differentiation.."=the shorter method to take the derivative
    -"determine all values of x at which the graph has a horizontal tangent"=take derivative and set it equal to zero
    -"determine the velocity function for..."=take the derivative and leave it in the form of #'s and variables...i.e-3x^2
    -"instantaneous velocity=velocity=TAKE DERIVATIVE
    -"find the acceleration of..."=2nd derivative
    -"use the product/quotient/chain rule.."=take the derivative using those methods
    -"find the RATE OF CHANGE.."=take derivative of the function(s) given
    -"determine AVERAGE VELOCITY...over the interval [a,b]=take the numbers in the interval, which are your x-values, and plug them into the original equation you are given. Then once you have your two points, find the slope
    -implicit differentiation=take derivative the same way, but with respect to y or any other specific variable present
    -maxs/mins,critical values, "increasing/decreasing"=take derivative and set it equal to zero. Set up intervals using the x-values you found and then plug in numbers on each interval.
    -Dealing with pictures of GRAPHS:
    --the derivative of diagonal lines are horizontal lines (if the diagonal line is going down, then the horizontal line will be negative..and vice versa..)
    --derivative of a horizontal line is a horizontal line at 0
    --derivative of a parabola is a diagonal line (if the parabola is facing up, then the diagonal line will also be going up, and vice versa..)
    **I think I pretty much answered both questions in all of that^^^well, I hope I did..

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  3. What are the different ways a derivative can be interpreted as?
    In other words I think I am looking for key words to recognize that a derivative is necessary
    dy/dx

    y ’

    f ’(x)

    d/dx

    d/dx [f(x)]

    Dx [y]

    limit process
    Short cut method for a derivative
    slope of a graph at a single point
    slope of a tangent line
    slope of a curve at a point
    rate of change
    Speed
    instantaneous Velocity
    average velocity
    Acceleration
    Use product rule
    Use quotient rule
    Chain rule
    General power rule
    Implicit differentiation
    With respect to
    Related rates
    Critical numbers
    Extreme values
    Max
    Min
    Relative Extrema
    Absolute extrema
    Rolles thorem
    Mean value thorem
    Find all values of c on an interval where f’(c)=0
    First derivative test
    Increasing
    Decreasing
    Change of direction


    So far what have you used the derivative for?
    Finding dy/dx

    finding y ’

    Finding f ’(x)

    Finding d/dx

    Finding d/dx [f(x)]

    Finding Dx [y]

    Using the limit process
    Using Short cut method for a derivative
    Finding the slope of a graph at a single point
    Finding the slope of a tangent line
    Finding the slope of a curve at a point
    Finding all values of x where there is a horizontal tangent/ if there are any x values where there is a horizontal tangent or not
    Solving for a rate of change
    Finding the Speed
    Finding the instantaneous Velocity
    Finding the average velocity
    Finding the Acceleration
    Using the product rule
    Using the quotient rule
    Using the Chain rule
    Using the General power rule
    Practicing Implicit differentiation
    Solving With respect to
    Finding Related rates
    Finding Critical numbers
    Finding Extreme values
    Deciphering if there is/ Finding the Max
    Deciphering if there is/ Finding the Min
    Finding the Relative Extrema
    Finding the Absolute extrema
    Using Rolles thorem
    Using the Mean value thorem
    Finding all values of c on an interval where f’(c)=0
    Using the First derivative test
    Find where a graph is Increasing or Decreasing
    When dealing with a Change of direction
    Also When asked questions about a graph involving any of the problems listed above

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  4. What are the different ways a derivative can be interpreted as?

    There are many different ways in which a derivative can be interpreted. There are many different notations, meanings, and other things to denote them.

    Some of the ways:

    d/dx
    dy/x
    d/dy
    y'
    f'(x)
    g'(x)
    d/dx[f(x)]
    Dx[y]
    slope of a tangent line
    slope of a curve at a point
    rate of change
    velocity
    speed
    acceleration
    instantaneous velocity
    "with respect to"


    What do we use derivatives for?

    We use them for:

    taking a derivative
    finding a derivative
    the limit process
    finding rates of change
    finding implicit derivatives
    finding the equation of a tangent line
    finding the slope of a tangent line
    finding the equation of a secant line
    using the chain rule
    using the product rule
    using the quotient rule
    position, velocity, and accleration (PVA) functions
    finding extrema on a closed interval
    finding critical numbers
    absolute max
    absolute min
    relative max
    relative min
    using Rolle's Theorem
    using the Mean Value Theorem

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  5. A derivative can be interpreted as:
    d/dx
    dx/dy
    Dx
    y’
    f’(x)
    slope of a tangent line
    slope of a horizontal tangent line
    equation of a tangent line
    rate of change
    velocity
    average velocity
    instantaneous velocity
    acceleration

    Derivatives are used for:
    general power rule
    implicit derivative
    limit process
    product rule
    quotient rule
    chain rule
    related rates
    max
    min
    critical numbers
    extreme values
    relative extrema
    absolute extrema
    Rolle ’s Theorem
    Mean Value Theorem
    First Derivative Test
    change of direction

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  6. What are the different ways a derivative can be interpreted as?
    -There are many different ways instructions can tell you to take a derivative. Usually, directions do not come out and say ‘find the derivative’. They might say something like ‘find the slope of a tangent line’ or ‘find the average velocity’.

    The easy ways one can recognize a derivative:
    -dy/dx
    -y`
    -f `(x)
    -d/dx
    -Dx[y]

    Key words/phrases that indicate a derivative is involved:
    -find the slope m of a tangent line
    -find the equation of a line that is tangent to f(x)
    -speed
    -velocity
    -acceleration
    -rate of change
    -first derivative test
    -limit process
    -slope of a graph at a single point
    -quotient/product rule
    -extreme values
    -critical numbers
    -Rolle’s Theorem
    -Mean Value Theorem
    -find all values of c on an interval where f `(c)=0

    So far, what have you used the derivative for?

    So far this year, we have used derivatives to find f `(x) >basic derivative
    -finding the slope of a graph at a point
    -solving for rate of change
    -using the general power rule,
    -using the limit process,
    -using the product rule,
    -using the quotient rule,
    -using the chain rule,
    -finding critical numbers,
    -finding extreme values,
    -finding implicit derivatives,
    -finding the max and min,
    -using the mean value theorem,
    -using Rolle’s theorem,
    -using first derivative test,
    -solving for speed
    -finding instantaneous velocity
    -finding average velocity (slope)
    -finding relative and absolute extrema
    -dealing with change in direction (inclining and declining)

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  7. what are the different ways a derivative can be interpreted as?

    dy/x
    d/dx
    d/dx[f(x)]
    Dx[y]
    d/dy
    f'(x)
    g'(x)
    y'
    slope of a tangent line
    slope of a curve at a point
    speed
    velocity
    instantaneous velocity
    acceleration
    rate of change

    we have used derivatives for:

    implicit derivatives
    general power rules
    the limit process
    quotient, product, and chain rules
    related rates
    max and mins
    critical numbers
    relative extrema
    extreme values
    absolute extrema
    Rolle's Theorem
    mean value theorem
    change of direction
    first derivative test

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  8. f'(x)
    y'
    dy/dx
    dx/dt
    d/dx
    dy/x
    slope of tangent line
    slope of a curve
    instantaneous velocity
    rate of change
    acceleration
    velocity
    speed

    we used derivatives in chapters 2-3 so far, in problems such as:

    Limit Process
    General Power rule
    Chain Rule
    Quotient Rule
    Product Rule
    Related Rate
    Finding Critical numbers (max & min)
    Rolle's Theorem
    MVT (Mean Value Theorem)
    The First Derivative Test

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  9. What are the different ways a derivative can be interpreted as? So far what have you used the derivative for?

    So, this question is basically asking what derivatives are used for so far from what we've learned. Derivatives can be used for everything from finding the slope of a tangent line to determining when the universe will end. Some examples of things we have used them for are:
    slope
    velocity
    acceleration
    speed
    position
    dividing by 0
    extrema
    relative extrema
    absolute extrema
    critical numbers

    There are also a lot of ways they can say to derivative in instructions such as:
    Find the slope of the tan
    find dy/dx
    find f'(x)
    find y'
    find the instantaneous velocity
    find dx/dt
    find d/dx
    find the rate of change
    find the critical numbers
    find the extrema

    There are many things derivatives can be used for and these are most of the ones that we learned so far.

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  10. Derivatives can be interpreted in many different ways. Since derivatives are used to find pretty much everything in calculus, then they have to be interchangable.

    Derivatives can be interpreted by the following words, symbols, letters, and/or phases.

    -f'(x)
    -dy/dx
    -y'
    -d/dx [f(x)]
    -Dx[y]
    -Slope of a tangent line
    -Speed
    -Velocity
    -Acceleration
    -Rate of Change
    -First derivative test
    -Second derivative
    -third derivative
    -etc

    Derivatives are used for alot in calculus. there are many different ways derivatives are used:
    - limit process
    - slope of a tangent line
    - instantaneous rate of change
    - Critical numbers
    - absolute maximums and minimums
    - relative maximums and minimums
    - rate of change
    - Derivatives

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  11. what are the different ways derivatives can be interpreted as?
    uhmm.....y', f', dy/dx, dx/dy, dy/dt, dx/dt, and other variations of those

    so far, we've used derivatives for stuff like the limit process, slope of a tangent line, instantaneous rate of change, critical numbers, absolute maximums and minimums, relative maximums and minimums, rates of change, and so much more

    ReplyDelete