All Calculus 1 Resources
Example Questions
Example Question #2 : The Mean Value Theorem
Let on the interval . Find a value for the number(s) that satisfies the mean value theorem for this function and interval.
The mean value theorem states that for a planar arc passing through a starting and endpoint , there exists at a minimum one point, , within the interval for which a line tangent to the curve at this point is parallel to the secant passing through the starting and end points.
In other words, if one were to draw a straight line through these start and end points, one could find a point on the curve where the tangent would have the same slope as this line.
Note that the value of the derivative of a function at a point is the function's slope at that point; i.e. the slope of the tangent at said point.
First, find the two function values of on the interval
Then take the difference of the two and divide by the interval.
Now find the derivative of the function; this will be solved for the value(s) found above.
, which falls within the interval , satisfying the MVT.
Example Question #582 : Functions
Let on the interval . Find a value for the number(s) that satisfies the mean value theorem for this function and interval.
The mean value theorem states that for a planar arc passing through a starting and endpoint , there exists at a minimum one point, , within the interval for which a line tangent to the curve at this point is parallel to the secant passing through the starting and end points.
In other words, if one were to draw a straight line through these start and end points, one could find a point on the curve where the tangent would have the same slope as this line.
Note that the value of the derivative of a function at a point is the function's slope at that point; i.e. the slope of the tangent at said point.
First, find the two function values of on the interval
Then take the difference of the two and divide by the interval.
Now find the derivative of the function; this will be solved for the value(s) found above.
Of these solutions satisfies the MVT by falling within
Example Question #1 : The Mean Value Theorem
Let on the interval . Find a value for the number(s) that satisfies the mean value theorem for this function and interval.
The mean value theorem states that for a planar arc passing through a starting and endpoint , there exists at a minimum one point, , within the interval for which a line tangent to the curve at this point is parallel to the secant passing through the starting and end points.
In other words, if one were to draw a straight line through these start and end points, one could find a point on the curve where the tangent would have the same slope as this line.
Note that the value of the derivative of a function at a point is the function's slope at that point; i.e. the slope of the tangent at said point.
First, find the two function values of on the interval
Then take the difference of the two and divide by the interval.
Now find the derivative of the function; this will be solved for the value(s) found above.
There are multiple solutions; within the interval , satisfies the mean value theorem.
Example Question #583 : Functions
Let on the interval . Find a value for the number(s) that satisfies the mean value theorem for this function and interval.
The mean value theorem states that for a planar arc passing through a starting and endpoint , there exists at a minimum one point, , within the interval for which a line tangent to the curve at this point is parallel to the secant passing through the starting and end points.
In other words, if one were to draw a straight line through these start and end points, one could find a point on the curve where the tangent would have the same slope as this line.
Note that the value of the derivative of a function at a point is the function's slope at that point; i.e. the slope of the tangent at said point.
First, find the two function values of on the interval
Then take the difference of the two and divide by the interval.
Now find the derivative of the function; this will be solved for the value(s) found above.
Of these two solutions validates the mean value theorem by falling within
Example Question #1 : The Mean Value Theorem
Let on the interval . Find a value for the number(s) that satisfies the mean value theorem for this function and interval.
The mean value theorem states that for a planar arc passing through a starting and endpoint , there exists at a minimum one point, , within the interval for which a line tangent to the curve at this point is parallel to the secant passing through the starting and end points.
In other words, if one were to draw a straight line through these start and end points, one could find a point on the curve where the tangent would have the same slope as this line.
Note that the value of the derivative of a function at a point is the function's slope at that point; i.e. the slope of the tangent at said point.
First, find the two function values of on the interval
Then take the difference of the two and divide by the interval.
Now find the derivative of the function; this will be solved for the value(s) found above.
This solution falls within , validating the mean value theorem.
Example Question #584 : Functions
Let on the interval . Find a value for the number(s) that satisfies the mean value theorem for this function and interval.
The mean value theorem states that for a planar arc passing through a starting and endpoint , there exists at a minimum one point, , within the interval for which a line tangent to the curve at this point is parallel to the secant passing through the starting and end points.
In other words, if one were to draw a straight line through these start and end points, one could find a point on the curve where the tangent would have the same slope as this line.
Note that the value of the derivative of a function at a point is the function's slope at that point; i.e. the slope of the tangent at said point.
First, find the two function values of on the interval
Then take the difference of the two and divide by the interval.
Now find the derivative of the function; this will be solved for the value(s) found above.
is the only real solution, but it falls within , validating the mean value theorem.
Example Question #401 : How To Find Differential Functions
Let on the interval . Find a value for the number(s) that satisfies the mean value theorem for this function and interval.
The mean value theorem states that for a planar arc passing through a starting and endpoint , there exists at a minimum one point, , within the interval for which a line tangent to the curve at this point is parallel to the secant passing through the starting and end points.
In other words, if one were to draw a straight line through these start and end points, one could find a point on the curve where the tangent would have the same slope as this line.
Note that the value of the derivative of a function at a point is the function's slope at that point; i.e. the slope of the tangent at said point.
First, find the two function values of on the interval
Then take the difference of the two and divide by the interval.
Now find the derivative of the function; this will be solved for the value(s) found above.
There are multiple solutions to this function
However, to validate the mean value theorem, the solution must fit within the interval . The only solution which does this is
Example Question #581 : Functions
Let on the interval . Which of the following values does not satisfy the mean value theorem for this function and interval?
The mean value theorem states that for a planar arc passing through a starting and endpoint , there exists at a minimum one point, , within the interval for which a line tangent to the curve at this point is parallel to the secant passing through the starting and end points.
In other words, if one were to draw a straight line through these start and end points, one could find a point on the curve where the tangent would have the same slope as this line.
Note that the value of the derivative of a function at a point is the function's slope at that point; i.e. the slope of the tangent at said point.
First, find the two function values of on the interval
Then take the difference of the two and divide by the interval.
Now find the derivative of the function; this will be solved for the value(s) found above.
This is best found using a numerical solver
Though there are multiple options, the ones which fit within
are . All others, while solutions to the equation, do not satisfy the mean value theorem.
Example Question #403 : How To Find Differential Functions
Let on the interval . Find a value for the number(s) that satisfies the mean value theorem for this function and interval.
The mean value theorem states that for a planar arc passing through a starting and endpoint , there exists at a minimum one point, , within the interval for which a line tangent to the curve at this point is parallel to the secant passing through the starting and end points.
In other words, if one were to draw a straight line through these start and end points, one could find a point on the curve where the tangent would have the same slope as this line.
Note that the value of the derivative of a function at a point is the function's slope at that point; i.e. the slope of the tangent at said point.
First, find the two function values of on the interval
Then take the difference of the two and divide by the interval.
Now find the derivative of the function; this will be solved for the value(s) found above.
There are multiple solutions of the form ; however, the only one which satisfies the mean value theorem and falls within is .
Example Question #404 : How To Find Differential Functions
Verify that the function satisfies Rolle's Theorem over the interval . If so, find all values which satisfy
The function does not satisfy Rolle's Theorem.
Rolle's Theorem states that if a real-valued function, , is continuous and differentiable on a closed interval , and if, then there must be some point, , in the open interval that satisfies the equation .
Essentially, if a function has a start and end point value which are equivalent, then assuming that the function has no breaks or abrupt and unsmooth changes in slope, there must be points where the derivative is zero, the slope is flat, and there is no change in the function value.
Visually is continous over
Evaluate the function
at its specified start and end points
This satisfies for Rolle's Theorem. Now differentiate:
The function is differentiable over the interval because its derivative is continuous; Rolle's Theorem is fully satisfied.
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