Absolute Extrema - Kuta Software

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Kuta Software - Infinite Calculus

Name___________________________________

Absolute Extrema

Date________________ Period____

For each problem, find all points of absolute minima and maxima on the given closed interval. 1) y = − x 3 − 6 x 2 − 9 x + 3; [−3, −1]

2) y =

y 8

8 ; [0, 5] x +4 2

y

−8

−6

−4

6

8

4

6

2

4

−2

2

4

6

2

8 x

−2

−8

−6

−4

−2

2

−4

−2

−6

−4

−8

−6

4

6

8 x

−8

3) y = x 3 + 6 x 2 + 9 x + 3; [−4, 0]

x2 5) y = ; [3, 6] 3x − 6

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4) y = x 4 − 3 x 2 + 4; [−1, 1]

2 3

6) y = ( x + 2) ; [−4, −2]

-1-

Worksheet by Kuta Software LLC

For each problem, find all points of absolute minima and maxima on the given interval. 7) y = x 3 − 3 x 2 − 3; (0, 3)

1 3

8) y = (5 x + 25) ; [−2, 2]

y 8

y 8

6

6

4

4

2

2 −8

−6

−4

−2

2

4

6

8 x

−2

−8

−6

−4

−2

2

4

6

8 x

−2

−4

−4

−6

−6

−8

−8

9) y = x 3 − 3 x 2 + 6; [0, ∞)

11) y =

4 ; (−5, −2] 2 x +2

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10) y = x 4 − 2 x 2 − 3; (0, ∞)

7

1

1 14 12) y = − ( x + 1) 3 + ( x + 1) 3 ; (−5, 0) 6 3

-2-

Worksheet by Kuta Software LLC

Kuta Software - Infinite Calculus

Name___________________________________

Absolute Extrema

Date________________ Period____

For each problem, find all points of absolute minima and maxima on the given closed interval. 1) y = − x 3 − 6 x 2 − 9 x + 3; [−3, −1]

2) y =

y 8

8 ; [0, 5] x +4 2

y

−8

−6

−4

6

8

4

6

2

4

−2

2

4

6

2

8 x

−2

−8

−6

−4

−2

2

−4

−2

−6

−4

−8

−6

4

6

8 x

−8

Absolute minimum: (−3, 3) Absolute maximum: (−1, 7)

( )

8 29 ( Absolute maximum: 0, 2) Absolute minimum: 5,

3) y = x 3 + 6 x 2 + 9 x + 3; [−4, 0]

4) y = x 4 − 3 x 2 + 4; [−1, 1]

Absolute minima: (−4, −1), (−1, −1) Absolute maxima: (0, 3), (−3, 3)

x2 5) y = ; [3, 6] 3x − 6

Absolute minima: (−1, 2), (1, 2) Absolute maximum: (0, 4)

2 3

6) y = ( x + 2) ; [−4, −2] Absolute minimum: (−2, 0) 3 Absolute maximum: (−4, 4 )

( )

8 Absolute minimum: 4, 3 Absolute maxima: (3, 3), (6, 3)

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-1-

Worksheet by Kuta Software LLC

For each problem, find all points of absolute minima and maxima on the given interval. 7) y = x 3 − 3 x 2 − 3; (0, 3)

1 3

8) y = (5 x + 25) ; [−2, 2]

y 8

y 8

6

6

4

4

2

2 −8

−6

−4

−2

2

4

6

8 x

−2

−8

−6

−4

−2

2

4

6

8 x

−2

−4

−4

−6

−6

−8

−8

Absolute minimum: (2, −7) No absolute maxima.

9) y = x 3 − 3 x 2 + 6; [0, ∞)

3

Absolute minimum: (−2, 15 ) 3 Absolute maximum: (2, 35 )

10) y = x 4 − 2 x 2 − 3; (0, ∞)

Absolute minimum: (2, 2) No absolute maxima.

11) y =

Absolute minimum: (1, −4) No absolute maxima.

7

4 ; (−5, −2] 2 x +2

1

1 14 12) y = − ( x + 1) 3 + ( x + 1) 3 ; (−5, 0) 6 3

No absolute minima.

3

Absolute minimum: (−3, −4 2 ) No absolute maxima.

( )

Absolute maximum: −2,

2 3

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Worksheet by Kuta Software LLC