Limits and Continuity
The position of a moving object is given by the function , where represents the position at time . Calculate the average rate of change of the position from to .
6 units/time
-9 units/time
2 units/time
12 units/time
Which expression represents the left-hand limit of at the point where ?
If where both functions approach zero as h approaches zero initially, what must be true for this application of L’Hôpital’s rule to be valid?
The function b(h) must not be differentiable at h=0 because if it were, its derivative would cancel out with that of a(h).
Continuous extension guarantees that taking the limit is sufficient without additional conditions on derivatives being met at h=0.
The functions and must intersect at h=0 for their ratio to have a meaningful limit as h approaches zero.
Derivatives of and must exist around h=0 and their limiting ratio must also equal L after application.
Which describes why a continuous function does not guarantee differentiability at every point on its domain?
Differentiability depends on whether a graph has an endpoint which continuous functions do not have.
Continuous functions are always differentiable since they have no breaks or holes.
A continuous function may have sharp corners or cusps where there are no defined tangents.
Continuity means that all vertical tangents are possible making differentiability certain.
Given a function with two local maxima at and , which method would be most appropriate to determine the absolute maximum value of over the closed interval [1,6]?
Factor to identify possible maxima within the interval.
Apply L'Hôpital's Rule to solve for limits approaching maxima.
Use integration from to to find areas under curves.
Evaluate at critical points and endpoints then compare values.
The height of a ball thrown in the air is given by the function , where represents the height (in feet) at time (in seconds). Calculate the average rate of change of the position from to .
0 ft/s
16 ft/s
64 ft/s
32 ft/s
Given that , which statement must be true about ?
As increases without bound, gets arbitrarily close to zero.
There must be some point beyond which no matter how large gets.
for all sufficiently large .
The function decreases monotonically for all .

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If the velocity of an object moving along a straight path is given by , what is the total displacement of the object from time to ?
The velocity a frisbee is , where represents the velocity (in feet per second) at time (in seconds). Calculate the average acceleration of the ball from to .
-16 ft/s^2
32 ft/s^2
-32 ft/s^2
16 ft/s^2
m(x) represents the total amount of interest gained by a bank account, where x is the number of years. What does m(20) represent?
The total amount of interest gained by the bank account after 20 days.
The total amount of money in the bank account after 20 years.
The total amount of money in the bank account after 20 months.
The total amount of interest gained by the bank after 20 years.