Question 1
Select the correct description of righthand and lefthand behavior of the graph of the polynomial function.
ƒ(x) = 4x^{2} – 5x + 4

Falls to the left, rises to the right. 


Falls to the left, falls to the right. 


Rises to the left, rises to the right. 


Rises to the left, falls to the right. 


Falls to the left. 
5 points
Question 2
Describe the righthand and the lefthand behavior of the graph of
t(x) = 4x^{5} – 7x^{3} – 13

Because the degree is odd and the leading coefficient is positive, the graph falls to the left and rises to the right. 


Because the degree is odd and the leading coefficient is positive, the graph rises to the left and rises to the right. 


Because the degree is odd and the leading coefficient is positive, the graph falls to the left and falls to the right. 


Because the degree is odd and the leading coefficient is positive, the graph rises to the left and falls to the right. 


Because the degree is even and the leading coefficient is positive, the graph rises to the left and rises to the right. 
5 points
Question 3
Select the correct description of righthand and lefthand behavior of the graph of the polynomial function.
ƒ(x) = 3 – 5x + 3x^{2} – 5x^{3}

Falls to the left, rises to the right. 


Falls to the left, falls to the right. 


Rises to the left, rises to the right. 


Rises to the left, falls to the right. 


Falls to the left. 
5 points
Question 4
Select from the following which is the polynomial function that has the given zeroes.
2,6

f(x) = x^{2} – 4x + 12 


f(x) = x^{2} + 4x + 12 


f(x) = x^{2} 4x – 12 


f(x) = x^{2} + 4x – 12 


f(x) = x^{2} + 4x – 12 
5 points
Question 5
Select from the following which is the polynomial function that has the given zeroes.
0,2,4

f(x) = x^{3} + 6x^{2} + 8x 


f(x) = x^{3} – 6x^{2} + 8x 


f(x) = x^{3} + 6x^{2} + 8x 


f(x) = x^{3} – 6x^{2} – 8x 


f(x) = x^{3} + 6x^{2} – 8x 
5 points
Question 6
Sketch the graph of the function by finding the zeroes of the polynomial.
f(x) = 2x^{3} – 10x^{2} + 12x

0,2,3 


0,2,3 


0,2,3 


0,2,3 


0,2,3 
5 points
Question 7
Select the graph of the function and determine the zeroes of the polynomial.
f(x) = x^{2}(x6)

0,6,6 


0,6 


0,6 


0,6 


0,6 
5 points
Question 8
Use the Remainder Theorem and Synthetic Division to find the function value.
g(x) = 3x^{6} + 3x^{4} – 3x^{2} + 6, g(0)

6 


3 


3 


8 


7 
5 points
Question 9
Use the Remainder Theorem and Synthetic Division to find the function value.
f(x) = 3x^{3} – 7x + 3, f(5)

343 


343 


345 


340 


344 
5 points
Question 10
Use the Remainder Theorem and Synthetic Division to find the function value.
h(x) = x^{3} – 4x^{2} – 9x + 7, h(4)

28 


27 


31 


25 


29 
5 points
Question 11
Use synthetic division to divide:
(3x^{3} – 24x^{2} + 45x – 54) ÷ (x6)

6x^{2} – 3x – 9, x ≠ 6 


6x^{2} 3x – 9, x ≠ 6 


3x^{2} – 6x + 9, x ≠ 6 


3x^{2} – 6x – 9, x ≠ 6 


3x^{2} + 6x + 9, x ≠ 6 
5 points
Question 12
Use synthetic division to divide:
(x^{3} – 27x + 54) ÷ (x – 3)

x^{2} + 3x – 18, x ≠ 3 


x^{2} – 3x – 27, x ≠ 3 


x^{2} + 9x + 18, x ≠ 3 


x^{2} + 9x – 6, x ≠ 3 


x^{2} + 6x + 9, x ≠ 3 
5 points
Question 13
Use synthetic division to divide:
(4x^{3} – 9x + 16x^{2} – 36) ÷ (x + 4)

4x^{2} – 9, x ≠ 4 


4x^{2} + 9, x ≠ 4 


4x^{2} – 9, x ≠ 4 


4x^{3} – 9, x ≠ 4 


4x^{3} + 9, x ≠ 4 
5 points
Question 14
Use synthetic division to divide:

5x^{2} + 45x + 25, x ≠ ^{1}/_{5} 


16x^{2} + 80x + 20, x ≠ ^{1}/_{5} 


100x^{2} + 45x + 400, x ≠ ^{1}/_{5} 


20x^{2} + 180x + 400, x ≠ ^{1}/_{5} 


4x^{2} + 21x + 20, x ≠ ^{1}/_{5} 
5 points
Question 15
Find all of the zeroes of the function.
(x – 3)(x + 9)^{3}

3,9 


3,9 


3,9 


3,3,9 


3,9 
5 points
Question 16
Find all the rational zeroes of the function.
x^{3} – 12x^{2} + 41x – 42

2, 3, 7 


2, 3, 7 


2, 3, 7 


2, 3, 7 


2, 3, 7 
5 points
Question 17
Determine all real zeroes of f.
f(x) = x^{3} + x^{2} – 25x – 25

5,1,0 


5,0,5 


5,1,5 


5,0,0 


5,1,0 
5 points
Question 18
The height, h(x), of a punted rugby ball is given by where x is the horizontal distance in feet from the point where the ball is punted. How far, horizontally, is the ball from the kicker when it is at its highest point?

28 feet 


13 feet 


18 feet 


23 feet 


16 feet 
5 points
Question 19
The profit P (in hundreds of dollars) that a company makes depends on the amount x (in hundreds of dollars) the company spends on advertising according to the model.
P(x) = 230 + 40x – 0.5x^{2}
What expenditure for advertising will yield a maximum profit?

40 


0.5 


230 


20 


115 
5 points
Question 20
The total revenue R earned per day (in dollars) from a petsitting service is given by
R(p) = 10p^{2} + 130p
where p is the price charged per pet (in dollars).
Find the price that will yield a maximum revenue.

$7.5 


$6.5 


$8.5 


$9.5 


$10.5 
A+++++ Tutorial (Reliable solution Use as a guide only)
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