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- 3,5,15
- TEXT
- 3
- Consider the function:|
- f(x) = x^3 -3x^2 + 2|
- Find its first and second derivative.
- 0
- PAUSE
- QUESTION
- How many critical points does it have?
- 4
- 3
- 0
- 1
- 2
- 4
- MESSAGE
- 3
- That is correct.
- The derivative is 3x^2 - 6, which is
- zero at x = 0 and x = 2.
- END BRANCH
- BRANCH
- MENU
- 1
- 4
- BOX
- 1
- x^3 - 3x^2 + 2
- BOX
- 2
- -2
- 4
- MESSAGE
- 3
- There are two critical points:
- x = 0 is a local max
- x = 2 is a local min
- PAUSE
- MENU
- 1
- 6
- END BRANCH
- QUESTION
- Find the point of inflection of f(x).
- 4
- 4
- -.5
- 0
- .5
- 1
- MESSAGE
- 3
- That is correct.
- The second derivative is 6x - 6.
- It is zero at x = 1.
- END BRANCH
- BRANCH
- MENU
- 1
- 1
- BOX
- 1
- x^3 - 3x^2 + 2
- MENU
- 2
- 3
- MENU
- 1
- 3
- MENU
- 1
- 3
- MESSAGE
- 1
- f" is zero only at x = 1.
- PAUSE
- MENU
- 1
- 8
- END BRANCH
- QUESTION
- Find the integral of f(x) from 0 to 2.
- 4
- 2
- -4
- 0
- 2
- 4
- MESSAGE
- 3
- That is correct.
-
-
- END BRANCH
- BRANCH
- MENU
- 1
- 5
- BOX
- 1
- x^3 - 3x^2 + 2
- BOX
- 2
- 0
- 2
- MESSAGE
- 3
- The area is 0.
- The negative area exactly cancels
- the positive area.
- PAUSE
- MENU
- 1
- 7
- END BRANCH
- END
-