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Practice Final #14



Multiple Choice
Identify the choice that best completes the statement or answers the question.
 

 1. 

Compared to the graph of the base function mc001-1.jpg, the graph of the function mc001-2.jpg is translated
A
9 units to the left
C
9 units down
B
9 units to the right
D
9 units up
 

 2. 

Compared to the graph of the base function mc002-1.jpg, the graph of the function mc002-2.jpg is translated
A
9 units to the right
C
9 units down
B
9 units up
D
9 units to the left
 

 3. 

Which of the graphs shown below represents the base function mc003-1.jpg and the stretched function g(x) = (mc003-2.jpgx)2?
A
mc003-3.jpg
C
mc003-5.jpg
B
mc003-4.jpg
D
mc003-6.jpg
 

 4. 

Compared to the graph of the base function mc004-1.jpg, the graph of the function mc004-2.jpg is translated
A
8 units to the left
C
8 units to the right
B
8 units up
D
8 units down
 

 5. 

Which graph represents an odd-degree polynomial function with two x-intercepts?
A
mc005-1.jpg
C
mc005-3.jpg
B
mc005-2.jpg
D
mc005-4.jpg
 

 6. 

What is the restriction on x if mc006-1.jpg is divided by mc006-2.jpg?
A
x mc006-3.jpg 8
C
x mc006-5.jpg –1
B
x mc006-4.jpg –5
D
x mc006-6.jpg 2
 

 7. 

What is the remainder when mc007-1.jpg is divided by mc007-2.jpg?
A
1070
C
962
B
–1070
D
–962
 

 8. 

Determine the value of k so that mc008-1.jpg is a factor of mc008-2.jpg.
A
k = –1
C
k = 14
B
k = –14
D
k = 1
 

 9. 

Given the function mc009-1.jpg, what are the parameters of the transformed function
y = mc009-2.jpgmc009-3.jpg and what is the effect of each parameter on the graph of the original function?
A
a = mc009-4.jpg, vertical stretch about the x-axis by a factor of mc009-5.jpg
h = –8, horizontal translation 8 units right
k = 2, vertical translation 2 units down
B
a = mc009-6.jpg, vertical stretch about the x-axis by a factor of mc009-7.jpg
h = 2, horizontal translation 2 units left
k = –8, vertical translation 8 units right
C
a = mc009-8.jpg, vertical stretch about the x-axis by a factor of mc009-9.jpg
h = 2, horizontal translation 2 units right
k = –8, vertical translation 8 units down
D
a = mc009-10.jpg, vertical stretch about the x-axis by a factor of mc009-11.jpg
h = 2, horizontal translation 2 units right
k = –8, vertical translation 8 units down
 

 10. 

The coordinates of the point that lies at the intersection of the terminal arm and the unit circle at an angle of 110° are
A
(0.94, –0.34)
C
(–0.34, 0.94)
B
(–0.34, –2.75)
D
(–2.75, 0.94)
 

 11. 

Identify the point on the unit circle corresponding to an angle of 300° in standard position.
A
( mc011-1.jpg, mc011-2.jpg)
C
(mc011-5.jpg, mc011-6.jpg)
B
(mc011-3.jpg, mc011-4.jpg)
D
(mc011-7.jpg, mc011-8.jpg)
 

 12. 

Determine the point in quadrant II where the line represented by mc012-1.jpg intersects the unit circle.
A
(0.95, –0.32)
C
(–0.35, 0.94)
B
(–0.32, 0.95)
D
(–0.32, 0.94)
 

 13. 

The point P(0.391, 0.921) is the point of intersection of a unit circle and the terminal arm of an angle q in standard position. What is the equation of the line passing through the centre of the circle and the point P? Round the slope to two decimal places.
A
mc013-1.jpg
C
mc013-3.jpg
B
mc013-2.jpg
D
mc013-4.jpg
 

 14. 

Which function, where x is in radians, is represented by the graph shown below?

mc014-1.jpg
A
mc014-2.jpg
C
mc014-4.jpg
B
mc014-3.jpg
D
mc014-5.jpg
 

 15. 

Which graph represents the function y = mc015-1.jpgcos(mc015-2.jpgx), where x is in degrees?
A
mc015-3.jpg
C
mc015-5.jpg
B
mc015-4.jpg
D
mc015-6.jpg
 

 16. 

Determine the phase shift of the sinusoidal function mc016-1.jpg.
A
mc016-2.jpg units to the right
C
mc016-3.jpg units to the left
B
3p units to the left
D
3p units to the right
 

 17. 

Solve mc017-1.jpg to three decimal places on the interval mc017-2.jpg .
A
x = 0.340, x = 5.943
C
x = 1.911, x = 1.231
B
x = 1.231, x = 5.052
D
x = 1.911, x = 4.373
 

 18. 

Express mc018-1.jpg in terms of cosine and sine only, and simplify.
A
0
C
1
B
mc018-2.jpg
D
mc018-3.jpg
 

 19. 

Which expression is equivalent to mc019-1.jpg?
A
mc019-2.jpg
C
mc019-4.jpg
B
mc019-3.jpg
D
mc019-5.jpg
 

 20. 

A bacteria colony initially has 1500 cells and doubles every week. Which function can be used to model the population, p, of the colony after t days?
A
mc020-1.jpg
C
mc020-3.jpg
B
mc020-2.jpg
D
mc020-4.jpg
 

 21. 

An investment of $150 is placed into an account that earns interest, compounded annually, at a rate of 5% for 12 years. The amount, A, in the account can be modelled by the function mc021-1.jpg, where t is the time, in years. What is the domain of this function?
A
mc021-2.jpg
C
mc021-4.jpg
B
mc021-3.jpg
D
mc021-5.jpg
 

 22. 

Mohamed purchased a car for $16 000. It depreciates by 20% of its current value every year. How much will the car be worth 8 years after it is purchased?
A
$80 000
C
$2684.35
B
$2000
D
$68 797.07
 

 23. 

Evaluate mc023-1.jpg.
A
4096
C
0.13
B
5.33
D
8
 

 24. 

Compared to the graph of the base function mc024-1.jpg, the graph of the function mc024-2.jpg is translated
A
6 units to the right and 7 units up
C
7 units to the right and 6 units up
B
7 units to the left and 6 units down
D
6 units to the left and 7 units down
 

 25. 

Which function represents a vertical translation of 7 units down, a horizontal translation of 8 units right, a horizontal stretch by a factor of mc025-1.jpg, no reflection in the y-axis, a vertical stretch by a factor of 6, and no reflection in the x-axis, when compared to the base function mc025-2.jpg.
A
mc025-3.jpg
C
mc025-5.jpg
B
mc025-4.jpg
D
mc025-6.jpg
 

 26. 

The pH scale is used to measure the acidity or alkalinity of a solution. pH is defined as mc026-1.jpg, where mc026-2.jpg is the concentration of hydronium ions, measured in moles per litre. Determine the pH of a solution with a concentration of mc026-3.jpg. Round your answer to two decimal places.
A
6.00
C
0.78
B
5.37
D
3.52
 

 27. 

Solve mc027-1.jpg. Round your answer to two decimal places.
A
3.06
C
2.95
B
7.26
D
–1.40
 

 28. 

What is the equation for the vertical asymptote of the graph of the function shown?
mc028-1.jpg
A
mc028-2.jpg
C
mc028-4.jpg
B
mc028-3.jpg
D
mc028-5.jpg
 
 
For the following question(s), assume that x is in radians, if applicable.
 

 29. 

Given the functions mc029-1.jpg and mc029-2.jpg, what is the range of the composite function mc029-3.jpg?
A
mc029-4.jpg
C
mc029-5.jpg
B
cannot be determined
D
mc029-6.jpg
 

 30. 

Given the functions mc030-1.jpg and mc030-2.jpg, determine the domain of the combined function mc030-3.jpg.
A
mc030-4.jpg
C
mc030-5.jpg
B
cannot be determined
D
mc030-6.jpg
 

 31. 

If mc031-1.jpg and mc031-2.jpg, what are the restrictions on the domain for the combined function mc031-3.jpg?
A
mc031-4.jpg
C
mc031-6.jpg
B
mc031-5.jpg
D
mc031-7.jpg mc031-8.jpg
 

 32. 

The number of different ways that 9 bikes can be locked in a bike rack is
A
3 628 800
C
40 320
B
20 160
D
362 880
 

 33. 

Evaluate mc033-1.jpg.
A
32 432 400
C
6435
B
163 459 296 000
D
259 459 200
 

 34. 

Determine the 5th term in the expansion of mc034-1.jpg.
A
mc034-2.jpg
C
mc034-4.jpg
B
mc034-3.jpg
D
mc034-5.jpg
 

 35. 

While at the dollar store, Peter finds 19 items at $1 each that he wants, but he only has $3. The number of ways he could select which items to buy is
A
mc035-1.jpg
C
mc035-3.jpg
B
mc035-2.jpg
D
mc035-4.jpg
 

Short Answer
 

 1. 

Solve the equation sa001-1.jpg, sa001-2.jpg, algebraically.
 

 2. 

Find the exact value of sa002-1.jpg .
 

 3. 

Match each exponential scatter plot with the corresponding equation of its curve of best fit.
a) sa003-1.jpg      b) sa003-2.jpg
c)
sa003-3.jpg
i) sa003-4.jpg
ii) sa003-5.jpg
iii) sa003-6.jpg
 

 4. 

Given sa004-1.jpg, find the value of sa004-2.jpg.
 
 
For the following question(s), assume that x is in radians, if applicable.
 

 5. 

Determine the domain and range of the function sa005-1.jpg.
 

Problem
 

 1. 

Prove that x2 + 5x + 6 is a factor of x4 + 5x3 + 2x2 – 20x – 24.
 

 2. 

a) Without using a calculator, determine two angles between 0° and 360° that have a sine ratio of pr002-1.jpg.
b) Use a calculator and a diagram to verify your answers to part a).
 

 3. 

Determine the number of solutions for the trigonometric equation pr003-1.jpg on the interval pr003-2.jpg.
 

 4. 

A cosine function has half the period of the function pr004-1.jpg. All other properties of the two functions are identical.
a) Determine the number of points of intersection if these two functions are graphed on the interval pr004-2.jpg. Explain.
b) Determine the values of x of the first two points of intersection to the right of x = 0°.
c) If the graph of the two functions were extended to 720°, how many points of intersection would there be? Explain.
d) Use the concept of coterminal angles to determine the values of x where the points of intersection would occur.
e) Graph the two functions over the interval pr004-3.jpg to verify your answer for parts b), c), and d).
 

 5. 

Prove that the equation pr005-1.jpg is true for all values of x.
 



 
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