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Worksheets

Features of Polynomial Functions

Total questions: 25

Worksheet time: 2hrs 12mins

Name
Class
Date
1.

What is the Relative Maximum of this function?

a)

x = 5

b)

Infinity

c)

There is no Relative Maximum.

d)

2.5 and it occurs at x = 5

2.

Identify the intervals where the function is positive and where it is negative.

a)

positive (-1, ∞) and negative (-∞, -1)

b)

positive nowhere and negative (-1, -4)

c)

positive (-∞,-3) and (1,∞) and negative (-3,1)

d)

positive (-∞,∞) and negative (-4,∞)

3.

Identify where the function is increasing and where it is decreasing.

a)

increasing (-1, ∞) and decreasing (-∞,-1)

b)

increasing (-∞, -1) and decreasing (-1, ∞)

c)

increasing (-∞,∞) and decreasing nowhere

d)

increasing (-1, -4) and decreasing (-3, 1)

4.

Where is the function positive and where is it negative?

a)

positive (-2,1) and (3,∞) and negative (-∞,-2) and (1,3)

b)

positive (-∞,-1) and (2,∞) and negative (-1,2)

c)

positive (-1,4) and negative (2,-2)

d)

positive (∞,3) and (1,-2) and negative (3,1) and (-2,-∞)

5.

When is this function decreasing?

a)

(-3, 3)

b)

(-∞, -3) U (3, ∞)

c)

(-∞, -3] U [3, ∞)

d)

[-3, 3]

6.

On which interval(s) is the given function increasing?

a)

(-∞, 2) U (-2, ∞)

b)

(-2, 2) U (-2, ∞)

c)

(-∞, -2) U (0.5, ∞)

d)

(0, 2) U (0.5, ∞)

7.

When is this function increasing?

a)

-3<x<3

b)

-2.5<x<2.5

c)

x>2.5

d)

x>3

8.
Where is the decreasing?
a)
( −∞, −2.55) U (0, 2.55)
b)
(∞, −6.25) U (36, −6.25)
c)
( −∞, −2.55] U [0, 2.55]
d)
(−∞, 0)
9.

The blue dot on this graph represents a(n)...

a)

Absolute Maximum

b)

Absolute Minimum

c)

Relative Maximum

d)

Relative Minimum

10.

What are the Relative Maxima of this graph?

a)

 3.93.9  only

b)

 55  only

c)

 3.3-3.3  and  2.5-2.5  

d)

 55  and  3.93.9  

e)

No Relative Maxima

11.

Identify where the function is positive.

a)

<x<5  ,   <x<0\infty<x<-5\ \ ,\ \ \ \infty<x<0

b)

5<x<0  ,   x>6-5<x<0\ \ ,\ \ \ x>6

c)

<x<5  , 0<x<6\infty<x<-5\ \ ,\ 0<x<6

d)

x>5  ,   x<6x>-5\ \ ,\ \ \ x<6

12.

Identify where the function is positive.

a)

All Real Numbers

b)

x<3x<-3  

c)

3<x<3-3<x<3  

d)

<x<3 ,  3<x<\infty<x<-3\ ,\ \ 3<x<\infty  

13.

What is the decreasing interval on the function shown?

a)

<x1-\infty<x\le1

b)

<x2-\infty<x\le2

c)

2x<2\le x<\infty

d)

1x<1\le x<\infty

14.

Over which intervals is the function increasing?

a)

−4 < x < −2 and −1 < x < 1

b)

−4 < x < −2 and 0 < x < 2

c)

−2 < x < 0 and 2 < x < 4

d)

−2 < x < −1 and 2 < x < 4

15.
Where is the function decreasing?
a)
(-∞, -1)
b)
(-1, ∞)
c)
(-∞, 3)
d)
(-∞, ∞)
16.

For what intervals of x is f(x) positive?

a)

x ≤ -1

b)

x ≥ -1

c)

-3 < x < 1

d)

0 ≤ x ≤ 1.5

17.

Identify where the function is positive.

a)

3<x<3-3<x<3

b)

All Real Numbers

c)

x<3, x>3x<-3,\ \ x>3

18.

Identify where the function is negative.

a)

x<7, x >5x<-7,\ \ \ x\ >5

b)

7<x<3, x >5-7<x<-3,\ \ \ x\ >5

c)

x<7, 3<x<5x<-7,\ \ \ -3<x<5

d)

7<x<5-7<x<5

19.

What are the extrema of the graph?

a)

Max = (0,-4)

Min = (-1.5,0) and (1.5, 0)

b)

Max = (0,1.5) and (0, -1.5)

Min = (-4,0)

c)

Max = (-1.5,0) and (1.5, 0)

Min = (0,-4)

d)

Max = (-4,0)

Min =(0,1.5) and (0, -1.5)

20.

What are the increasing and decreasing intervals of the graph?

a)

Increasing = (-1.5, 0) & (1.5, ∞)

Decreasing = (-∞, -1.5) & (0, 1.5)

b)

Increasing = (-∞, -1.5) & (0, 1.5)

Decreasing = (-1.5, 0) & (1.5, ∞)

c)

Increasing = (-∞, -1.5) & (1.5, ∞)

Decreasing = (-1.5, 0) & (0, 1.5)

d)

Increasing = (-1.5, 0) & (0, 1.5)

Decreasing = (-∞, -1.5) & (1.5, ∞)

21.

What are the increasing and decreasing intervals of the graph?

a)

Increasing = (-∞,-3), (-1,2), (4, ∞)

Decreasing = (-3,-1), (2,4)

b)

Increasing = (-3,-1), (2,4)

Decreasing = (-∞,-3), (-1,2), (4, ∞)

c)

Increasing = (-∞,-3), (-1,2),

Decreasing (-3,-1), (2,4), (4, ∞)

d)

Increasing = (-∞, 2), (-3, 1), (-1, ∞)

Decreasing (2, -3), (1, -1)

22.

What are the extrema of the graph?

a)

Max = (2, -3), (1, 2)

Min = (-3, -1), (-1, 4)

b)

Max = (-3, -1), (-1, 4)

Min = (2, -3), (1, 2)

c)

Max = (-1, -3), (4, -1)

Min = (-3, 2), (2, 1)

d)

Max = (-3, 2), (2, 1)

Min = (-1, -3), (4, -1)

23.

How many increasing/decreasing intervals are there in this graph?

a)

2 max, 2 min

b)

3 max, 2 min

c)

2 man, 3 min

d)

3 increasing intervals, 2 decreasing intervals

e)

2 increasing intervals, 3 decreasing intervals

24.

as x increases, y does what

a)

increases

b)

decreases

c)

stays the same

d)

approaches 0

25.

as x increases, y _____________

a)

increases

b)

decreases

c)

stays the same

d)

approaches 4