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Math 12 Pre-Calc Practice Final Exam #6



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
5 units to the right
C
5 units down
B
5 units up
D
5 units to the left
 

 3. 

When b > 0, the function mc003-1.jpg has what relationship to the base function mc003-2.jpg?
A
f(x) is stretched vertically by a factor of |b| and reflected in the x-axis
B
f(x) is stretched vertically by a factor of |b|
C
f(x) is stretched horizontally by a factor of 1/|b| and reflected in the y-axis
D
f(x) is stretched horizontally by a factor of 1/|b|
 

 4. 

Which of the graphs shown below represents the base function mc004-1.jpg and the stretched function g(x) = (mc004-2.jpgx)2?
A
mc004-3.jpg
C
mc004-5.jpg
B
mc004-4.jpg
D
mc004-6.jpg
 

 5. 

Compared to the graph of the base function mc005-1.jpg, the graph of the function mc005-2.jpg is translated
A
8 units to the left
C
8 units to the right
B
8 units up
D
8 units down
 

 6. 

When the graph of mc006-1.jpg is vertically stretched by a factor of 3, the point (9, –10) will be translated to the point
A
(–10, 9)
B
(3, –30)
C
(–30, 9)
D
(9, –30)
 

 7. 

Which radical equation can be solved using the graph shown below?mc007-1.jpg
A
mc007-2.jpg
C
mc007-4.jpg
B
mc007-3.jpg
D
mc007-5.jpg
 

 8. 

If mc008-1.jpg is divided by mc008-2.jpg, then the restriction on x is
A
mc008-3.jpg mc008-4.jpg
C
mc008-7.jpg mc008-8.jpg
B
mc008-5.jpg mc008-6.jpg
D
mc008-9.jpg mc008-10.jpg
 

 9. 

Determine the value of k so that mc009-1.jpg is a factor of mc009-2.jpg.
A
k = –1
C
k = 14
B
k = –14
D
k = 1
 

 10. 

One root of the equation mc010-1.jpg is
A
–3
C
9
B
3
D
–5
 

 11. 

If the angle q is 1600° in standard position, in which quadrant does it terminate?
A
quadrant III
C
quadrant II
B
quadrant IV
D
quadrant I
 

 12. 

The range (in radians) of the graph of mc012-1.jpg is
A
mc012-2.jpg
C
mc012-4.jpg
B
mc012-3.jpg
D
mc012-5.jpg
 

 13. 

Which graph represents the sinusoidal function mc013-1.jpg?
A
mc013-2.jpg
C
mc013-4.jpg
B
mc013-3.jpg
D
mc013-5.jpg
 

 14. 

Give an equation for a transformed sine function with an amplitude of mc014-1.jpg, a period of mc014-2.jpg, a phase shift of mc014-3.jpg rad to the right, and a vertical translation of 9 units down.
A
y = mc014-4.jpg mc014-5.jpg
C
y = mc014-9.jpg mc014-10.jpg
B
y = mc014-6.jpg sin mc014-7.jpgpmc014-8.jpg – 9
D
y = mc014-11.jpg sin mc014-12.jpgpmc014-13.jpg – 9
 

 15. 

Which expression is equivalent to mc015-1.jpg?
A
mc015-2.jpg
C
mc015-4.jpg
B
mc015-3.jpg
D
mc015-5.jpg
 

 16. 

mc016-1.jpg is equivalent to
A
mc016-2.jpg
C
mc016-4.jpg
B
mc016-3.jpg
D
mc016-5.jpg
 

 17. 

A colony of ants has an initial population of 750 and triples every day. Which function can be used to model the ant population, p, after t days?
A
mc017-1.jpg
C
mc017-3.jpg
B
mc017-2.jpg
D
mc017-4.jpg
 

 18. 

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 mc018-1.jpg, where t is the time, in years. What is the domain of this function?
A
mc018-2.jpg
C
mc018-4.jpg
B
mc018-3.jpg
D
mc018-5.jpg
 

 19. 

A rumour is being spread in a community that the mayor is going to retire before the next election. Initially, 6 people were told the rumour and each of these people told 6 others the following day. Each of the 6 people told by the initial people told 6 others the day after they were told. If this process keeps up, how many people will be told the rumour on the eighth day?
A
1 679 616 people
C
10 077 696 people
B
279 936 people
D
48 people
 

 20. 

To the nearest year, how long would an investment need to be left in the bank at 5%, compounded annually, for the investment to triple?
A
15 years
C
28 years
B
26 years
D
23 years
 

 21. 

Compared to the graph of the base function mc021-1.jpg, the graph of the function mc021-2.jpg is translated
A
4 units to the left
C
4 units up
B
4 units down
D
4 units to the right
 

 22. 

Compared to the graph of the base function mc022-1.jpg, the graph of the function mc022-2.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
 

 23. 

Solve mc023-1.jpg. Round your answer to two decimal places.
A
3.59
C
1.78
B
2.97
D
0.34
 

 24. 

What is the equation for the vertical asymptote of the graph of the function shown?
mc024-1.jpg
A
mc024-2.jpg
C
mc024-4.jpg
B
mc024-3.jpg
D
mc024-5.jpg
 

 25. 

What are the x-intercepts of the graph of mc025-1.jpg?
A
–7, –5
C
7, 5
B
2, –9
D
–2, 9
 

 26. 

Given the functions mc026-1.jpg and mc026-2.jpg, determine the equation for the combined function mc026-3.jpg.
A
mc026-4.jpg
C
mc026-6.jpg
B
mc026-5.jpg
D
mc026-7.jpg
 

 27. 

Given the functions mc027-1.jpg and mc027-2.jpg, what is the domain of the combined function mc027-3.jpg?
A
cannot be determined
C
mc027-5.jpg
B
mc027-4.jpg
D
mc027-6.jpg
 

 28. 

Given the functions mc028-1.jpg and mc028-2.jpg, determine the domain of the combined function mc028-3.jpg.
A
mc028-4.jpg
C
mc028-5.jpg
B
cannot be determined
D
mc028-6.jpg
 

 29. 

Solve for the variable:
mc029-1.jpg = 252
A
15
C
6
B
mc029-2.jpg
D
mc029-3.jpg
 

 30. 

An orchestra has 2 violinists, 3 cellists, and 4 harpists. Assume that the players of each instrument have to sit together, but they can sit in any position in their own group. In how many ways can the conductor seat the members of the orchestra in a line?
A
144
C
24
B
72
D
1728
 

 31. 

Evaluate the expression mc031-1.jpg.
A
2184
C
794 976
B
87 178 291 200
D
239 500 800
 

 32. 

Rachael has a digital music player that holds 800 songs. She has 1500 songs in her music library. She decides that her 50 favourite songs must be on the player. Which expression can be used to calculate the number of ways can she load songs on to the MP3 player so that it is full?
A
mc032-1.jpg
C
mc032-3.jpg
B
mc032-2.jpg
D
mc032-4.jpg
 

 33. 

For a mock United Nations, 6 boys and 7 girls are to be chosen. If there are 12 boys and 9 girls to choose from, how many groups are possible?
A
846 720
C
960
B
33 264
D
120 708 403 200
 

 34. 

Determine the coefficient, a, for the term mc034-1.jpg of the binomial expansion of mc034-2.jpg.
A
35
C
792
B
60
D
3 991 680
 

 35. 

A scout troop is arranged in a circle for an opening ceremony. If there are 9 scouts, in how many unique ways can they stand around the circle?
A
5040
C
81
B
40 320
D
362 880
 

Short Answer
 

 1. 

A student designs a special container as part of an egg drop experiment. She believes that the container can withstand a fall as long as the speed of the container does not exceed 80 ft/s. She uses the equation sa001-1.jpg to model the velocity, v, in feet per second, as a function of constant acceleration, a, in feet per second squared and the drop distance, d, in feet. Assuming the student’s specifications are correct, will the egg break if the student drops the egg from shoulder height (5 ft) off a building 80 ft high? What is the maximum height the egg can be dropped from? (Note: The acceleration due to gravity is 32 ft/s2.)
 

 2. 

A child swings on a playground swing set. If the length of the swing’s chain is 3 m and the child swings through an angle of sa002-1.jpg, what is the exact arc length through which the child travels?
 

 3. 

For the function sa003-1.jpg,
a) describe the transformations of the function when compared to the function sa003-2.jpg
b) sketch the graph of the given function and sa003-3.jpg on the same set of axes
c) state the domain, the range, and the equation of the asymptote
 

 4. 

Write the equation for the function that results from each transformation or set of transformations applied to the base function sa004-1.jpg.
a) reflect in the y-axis
b) shift 3 units to the right
c) shift 1 unit down and 4 units to the left
d) reflect in the x-axis and shift 2 units down
 

 5. 

Given the functions sa005-1.jpg and sa005-2.jpg, determine a simplified equation for sa005-3.jpg.
 

Problem
 

 1. 

Two billiard balls collide and then separate from one another at the same, constant speed. Assume the billiard table is frictionless. The angle between the balls is 1.25 radians. After 2 s, the distance between the balls is 1 m. How fast are the balls moving, to the nearest hundredth of a metre per second?
 

 2. 

Solve the equation pr002-1.jpg.
 

 3. 

Write an equation for the graph of the rational function shown. Explain your reasoning.
pr003-1.jpg
 

 4. 

A ski club charters a bus for a ski trip at a cost of $480. In an attempt to lower the bus fare per skier, the club invites non-members to go along. After five non-members join the trip, the fare per skier decreases by $4.80. How many club members are going on the trip?
 

 5. 

Expand and simplify: pr005-1.jpg.
 



 
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