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Math 12 Pre-Calc Practice Final Exam #3



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

 2. 

When a > 0, the function mc002-1.jpg has what relationship to the base function mc002-2.jpg?
A
f(x) is stretched vertically by a factor of |a| and reflected in the x-axis
B
f(x) is stretched horizontally by a factor of 1/|a|
C
f(x) is stretched vertically by a factor of |a|
D
f(x) is stretched horizontally by a factor of 1/|a| and reflected in the y-axis
 

 3. 

Which of the graphs shown below represents the base function mc003-1.jpg and the stretched function g(x) = mc003-2.jpgx2?
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
4 units to the right and 8 units up
C
8 units to the left and 4 units down
B
4 units to the left and 8 units down
D
8 units to the right and 4 units up
 

 5. 

Which of the following angles, in degrees, is coterminal with, but not equal to, mc005-1.jpgmc005-2.jpg radians?
A
396°
C
486°
B
576°
D
216°
 

 6. 

A bottle is riding the waves at a beach. The bottle’s up and down motion with the waves can be described using the formula mc006-1.jpg, where h is the height, in metres, above the flat water surface and t is the time, in seconds. When is the first time, to the nearest tenth of a second, that the height of the bottle will be 1.4 m?
A
14.8 s
C
0.9 s
B
1.1 s
D
1.5 s
 

 7. 

What is the amplitude of the sinusoidal function mc007-1.jpg?
A
mc007-2.jpg
C
–5
B
–8
D
7
 

 8. 

Which graph represents the sinusoidal function mc008-1.jpg?
A
mc008-2.jpg
C
mc008-4.jpg
B
mc008-3.jpg
D
mc008-5.jpg
 

 9. 

Given the trigonometric function mc009-1.jpg, find the value of the y-coordinate of the point with x-coordinate –1200°.
A
mc009-2.jpg
C
mc009-4.jpg
B
mc009-3.jpg
D
mc009-5.jpg
 

 10. 

What are the solutions for mc010-1.jpgmc010-2.jpg = 0 in the interval mc010-3.jpg?
A
x = 90° and 270° mc010-4.jpg
C
x = 60° and 240° and 45°
B
mc010-5.jpg mc010-6.jpg mc010-7.jpg mc010-8.jpg
D
x = 30° and 210° mc010-9.jpg
 
 
Use the following information to answer the questions.

The height, h, in centimetres, of a piston moving up and down in an engine cylinder can be modelled by the function nar001-1.jpg, where t is the time, in seconds.
 

 11. 

What is the period?
A
mc011-1.jpg s
C
mc011-3.jpg s
B
mc011-2.jpg s
D
mc011-4.jpg s
 

 12. 

Which equation is a quotient identity?
A
mc012-1.jpg
C
mc012-3.jpg
B
mc012-2.jpg
D
mc012-4.jpg
 

 13. 

Which expression is equivalent to mc013-1.jpg?
A
mc013-2.jpg
C
mc013-4.jpg
B
mc013-3.jpg
D
mc013-5.jpg
 

 14. 

Determine the exact value of mc014-1.jpg.
A
mc014-2.jpg
C
mc014-4.jpg
B
mc014-3.jpg
D
mc014-5.jpg
 

 15. 

Simplify mc015-1.jpg.
A
0
C
-1
B
undefined
D
1
 

 16. 

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

 17. 

mc017-1.jpg can be rewritten as
A
mc017-2.jpg
C
mc017-4.jpg
B
mc017-3.jpg
D
mc017-5.jpg
 

 18. 

A radioactive sample with an initial mass of 1 mg has a half-life of 9 days. What is the equation that models the exponential decay, A, for time, t, in 9-day intervals?
A
mc018-1.jpg
C
mc018-3.jpg
B
mc018-2.jpg
D
mc018-4.jpg
 

 19. 

Solve for x.
mc019-1.jpg
A
9
C
8
B
7
D
11
 

 20. 

The domain of the function mc020-1.jpg is
A
mc020-2.jpg
C
mc020-4.jpg
B
mc020-3.jpg
D
mc020-5.jpg
 

 21. 

Compared to the graph of the base function mc021-1.jpg, the graph of the function mc021-2.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
 

 22. 

Compared to the graph of the base function mc022-1.jpg, the graph of the function mc022-2.jpg is
A
translated down 10 units and left 6 units, horizontally stretched by a factor of mc022-3.jpg, reflected in the y-axis, vertically stretched by a factor of 3, and reflected in the x-axis
C
translated down 10 units and left 6 units, horizontally stretched by a factor of mc022-5.jpg, not reflected in the y-axis, vertically stretched by a factor of 3, and not reflected in the x-axis
B
translated down 10 units and right 6 units, horizontally stretched by a factor of mc022-4.jpg, reflected in the y-axis, vertically stretched by a factor of 3, and not reflected in the x-axis
D
translated up 10 units and left 6 units, horizontally stretched by a factor of mc022-6.jpg, not reflected in the y-axis, vertically stretched by a factor of 3, and not reflected in the x-axis
 

 23. 

Which if the following is equivalent to the expression mc023-1.jpg?
A
mc023-2.jpg
C
mc023-4.jpg
B
mc023-3.jpg
D
mc023-5.jpg
 

 24. 

Solve mc024-1.jpg. Round your answer to two decimal places.
A
3.06
C
2.95
B
7.26
D
–1.40
 

 25. 

What is the equation for the horizontal asymptote of the graph of the function shown?
mc025-1.jpg
A
mc025-2.jpg
C
mc025-4.jpg
B
mc025-3.jpg
D
mc025-5.jpg
 

 26. 

Which function has a graph in the shape of a parabola?
A
mc026-1.jpg
C
mc026-3.jpg
B
mc026-2.jpg
D
none of the above
 

 27. 

Solve the equation mc027-1.jpg.
A
x = mc027-2.jpg
C
x = –6
B
x = –8
D
x = mc027-3.jpg
 

 28. 

Solve the equation mc028-1.jpg.
A
x = mc028-2.jpg
C
x = mc028-3.jpg
B
x = 3
D
x = 4
 

 29. 

What are the x-intercepts of the graph of mc029-1.jpg?
A
–7, –5
C
7, 5
B
2, –9
D
–2, 9
 
 
For the following question(s), assume that x is in radians, if applicable.
 

 30. 

Given the functions mc030-1.jpg and mc030-2.jpg, what is the value of mc030-3.jpg?
A
mc030-4.jpg
C
mc030-6.jpg
B
mc030-5.jpg
D
mc030-7.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. 

Solve for n in the expression mc032-1.jpg.
A
8
C
9
B
16
D
8
 

 33. 

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
 

 34. 

After a sports, tournament every player shakes hands with every other player once. If there are 36 handshakes in total, how many players are at the tournament?
A
18
C
8
B
10
D
9
 

 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. 

Find the exact value of sa001-1.jpg .
 

 2. 

Use a counterexample to show that sa002-1.jpg is not an identity.
 

 3. 

Verify graphically that sa003-1.jpg for sa003-2.jpg.
 

 4. 

Sketch the graph of the function sa004-1.jpg using transformations and identify
a) the vertical asymptotes (if any)
b) the horizontal asymptotes (if any)
c) the domain and range
d) the behaviour near any non-permissible values
e) the end behaviour
sa004-2.jpg
 

 5. 

Solve each equation by graphing, using technology. Express your answers to two decimal places.
a) sa005-1.jpg
b) sa005-2.jpg
c) sa005-3.jpg
d) sa005-4.jpg
 

Problem
 

 1. 

Solve the equation pr001-1.jpg.
 

 2. 

a) Sketch the graph of the function pr002-1.jpg. Identify the key features.
b) Identify the domain and range.
c) Identify the equation of the vertical asymptote.
pr002-2.jpg
 

 3. 

Find the difference in pH levels of a swimming pool with a hydronium ion concentration of pr003-1.jpg mol/L and a swimming pool with a hydronium ion concentration of pr003-2.jpg mol/L, to the nearest hundredth.
 

 4. 

Explain the steps used to solve the equation pr004-1.jpg.
 

 5. 

Write an equation for a rational function whose graph has all of the following features:
• vertical asymptote with equation x = 3
• horizontal asymptote with equation y = 2
• hole at x = 1
• no x-intercepts
     
 



 
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