
First Derivative Test
Authored by Rebecca Pierce
Mathematics
12th Grade
CCSS covered
Used 5+ times

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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the first derivative test used for?
The first derivative test is used to determine the concavity of a function.
The first derivative test is used to calculate the average rate of change of a function.
The first derivative test is used to determine the relative extrema of a function.
The first derivative test is used to find the x-intercepts of a function.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What are increasing intervals in the context of the first derivative test?
Intervals where the derivative is undefined
Intervals where the derivative is zero
Intervals where the derivative is negative
Intervals where the derivative is positive
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What are decreasing intervals in the context of the first derivative test?
Intervals where the first derivative is negative.
Intervals where the first derivative is positive.
Intervals where the first derivative is increasing.
Intervals where the first derivative is zero.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How do you find critical points using the first derivative test?
To find critical points using the first derivative test, follow these steps: 1. Find the second derivative of the function. 2. Set the second derivative equal to zero and solve for x to find the critical points. 3. Determine the sign of the second derivative on either side of each critical point. 4. If the sign changes from positive to negative, the critical point is a local maximum. If the sign changes from negative to positive, the critical point is a local minimum. If the sign does not change, the critical point is an inflection point.
To find critical points using the first derivative test, follow these steps: 1. Find the function's second derivative. 2. Set the second derivative equal to zero and solve for x to find the critical points. 3. Determine the sign of the second derivative on either side of each critical point. 4. If the sign changes from negative to positive, the critical point is a local maximum. If the sign changes from positive to negative, the critical point is a local minimum. If the sign does not change, the critical point is an inflection point.
To find critical points using the first derivative test, follow these steps: 1. Find the first derivative of the function. 2. Set the first derivative equal to zero and solve for x to find the critical points. 3. Determine the sign of the first derivative on either side of each critical point. 4. If the sign changes from negative to positive, the critical point is a local maximum. If the sign changes from positive to negative, the critical point is a local minimum. If the sign does not change, the critical point is a saddle point.
To find critical points using the first derivative test, follow these steps: 1. Find the first derivative of the function. 2. Set the first derivative equal to zero and solve for x to find the critical points. 3. Determine the sign of the first derivative on either side of each critical point. 4. If the sign changes from positive to negative, the critical point is a local maximum. If the sign changes from negative to positive, the critical point is a local minimum. If the sign does not change, the critical point is an inflection point.
Tags
CCSS.HSF.IF.C.7
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is a local maximum in the context of the first derivative test?
A local maximum is a point on a function where the derivative is undefined.
A local maximum is a point on a function where the derivative changes from negative to positive.
A local maximum is a point on a function where the derivative changes from positive to negative.
A local maximum is a point on a function where the derivative is equal to zero.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is a local minimum in the context of the first derivative test?
A local minimum is a point on a function where the derivative changes from negative to positive.
A local minimum is a point on a function where the derivative is negative.
A local minimum is a point on a function where the derivative is positive.
A local minimum is a point on a function where the derivative is zero.
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How do you determine if a critical point is a local maximum or minimum using the first derivative test?
To determine if a critical point is a local maximum or minimum using the first derivative test, you need to find the intervals between the critical points and test a point from each interval in the first derivative. If the first derivative is positive on one side and negative on the other side, it is a local maximum. If the first derivative is negative on one side and positive on the other side, it is a local minimum.
If the first derivative is negative on both sides, it is a local minimum.
If the first derivative is positive on both sides, it is a local maximum.
The first derivative test cannot determine if a critical point is a local maximum or minimum.
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