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Practice Final #11



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

 2. 

What is the equation of the transformed function, g(x), after the transformations are applied to the graph of the base function mc002-1.jpg, shown in blue, to obtain the graph of g(x), shown in red?
mc002-2.jpg
A
mc002-3.jpg
C
mc002-5.jpg
B
mc002-4.jpg
D
mc002-6.jpg
 

 3. 

Compared to the graph of the base function mc003-1.jpg, the graph of the function mc003-2.jpg is translated
A
9 units to the left and 4 units down
C
9 units to the right and 4 units up
B
4 units to the left and 9 units down
D
4 units to the right and 9 units up
 

 4. 

Compared to the graph of the base function mc004-1.jpg, the graph of the function mc004-2.jpg is
A
compressed by a factor of mc004-3.jpg and not reflected
B
stretched by a factor of 5 and reflected in the y-axis
C
compressed by a factor of mc004-4.jpg and reflected in the y-axis
D
stretched by a factor of 5 and not reflected
 

 5. 

Given the function mc005-1.jpg with a domain of mc005-2.jpg and a range of mc005-3.jpg, which of the following best describes the vertical and horizontal translations with respect to the graph of mc005-4.jpg?
A
5 units to the left and 8 units up
C
8 units to the left and 5 units up
B
8 units to the left and 5 units down
D
5 units to the left and 8 units down
 

 6. 

Compared to the graph of the base function mc006-1.jpg, the graph of the function mc006-2.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
 

 7. 

What is the equation of the transformed function, g(x), after the transformations are applied to the graph of the base function mc007-1.jpg, shown in blue, to obtain the graph of g(x), shown in red?
mc007-2.jpg
A
mc007-3.jpg
C
mc007-5.jpg
B
mc007-4.jpg
D
mc007-6.jpg
 

 8. 

Which graph shows the solution to the radical equation mc008-1.jpg?
A
mc008-2.jpg
C
mc008-4.jpg
B
mc008-3.jpg
D
mc008-5.jpg
 

 9. 

When solving the equation mc009-1.jpg, which values must be checked for extraneous roots?
A
–4 and 7
C
8 and 6
B
7 and –7
D
–4 and –7
 

 10. 

Which equation of a radical function would have the following domain and range?
mc010-1.jpg; mc010-2.jpg
A
mc010-3.jpg
C
mc010-5.jpg
B
mc010-4.jpg
D
mc010-6.jpg
 

 11. 

mc011-1.jpgmc011-2.jpg radians is equal to how many degrees?
A
240°
C
420°
B
150°
D
330°
 

 12. 

Giai got an answer of 3.86 when she was calculating the value of a trigonometric function. Assuming Giai did her calculation correctly, which of the following was she calculating?
A
tan mc012-1.jpgp
C
csc mc012-3.jpgp
B
sec mc012-2.jpgp
D
cot mc012-4.jpgp
 

 13. 

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

mc013-1.jpg
A
mc013-2.jpg
C
mc013-4.jpg
B
mc013-3.jpg
D
mc013-5.jpg
 

 14. 

The range (in radians) of the graph of mc014-1.jpg is
A
mc014-2.jpg
C
mc014-4.jpg
B
mc014-3.jpg
D
mc014-5.jpg
 

 15. 

The amplitude and period (in degrees) of mc015-1.jpg are
A
amplitude = mc015-2.jpg
period = mc015-3.jpg
C
amplitude = mc015-5.jpg
period = mc015-6.jpg
B
amplitude = 2
period = mc015-4.jpg
D
amplitude = –2
period = mc015-7.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.
 

 16. 

What is the period?
A
mc016-1.jpg s
C
mc016-3.jpg s
B
mc016-2.jpg s
D
mc016-4.jpg s
 

 17. 

Which equation is a reciprocal identity?
A
mc017-1.jpg
C
mc017-3.jpg
B
mc017-2.jpg
D
mc017-4.jpg
 

 18. 

Determine the exact value of mc018-1.jpg.
A
mc018-2.jpg
C
mc018-4.jpg
B
mc018-3.jpg
D
mc018-5.jpg
 

 19. 

Simplify mc019-1.jpg.
A
-1
C
0
B
1
D
undefined
 

 20. 

mc020-1.jpg can be rewritten as
A
mc020-2.jpg
C
mc020-4.jpg
B
mc020-3.jpg
D
mc020-5.jpg
 

 21. 

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
 

 22. 

Another way of writing mc022-1.jpg is
A
mc022-2.jpg
C
mc022-4.jpg
B
mc022-3.jpg
D
mc022-5.jpg
 

 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. 

What is the equation for the asymptote of the function mc025-1.jpg?
A
x = 2
C
x = –5
B
x = –3
D
x = –2
 

 26. 

Which of the following is equivalent to the expression mc026-1.jpg?
A
mc026-2.jpg
C
mc026-4.jpg
B
mc026-3.jpg
D
mc026-5.jpg
 

 27. 

If mc027-1.jpg, mc027-2.jpg, and mc027-3.jpg, an algebraic expression in terms of s, v, and z for mc027-4.jpg is
A
v - 2s + 2z
C
v - 2(s - z)
B
v - 2(s + z)
D
v - 2s + z
 

 28. 

Solve mc028-1.jpg.
A
x = 6
C
x = mc028-3.jpg
B
x = mc028-2.jpg
D
x = 729
 

 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
 

 30. 

Given the functions mc030-1.jpg and mc030-2.jpg, determine the equation for the combined function mc030-3.jpg.
A
mc030-4.jpg
C
mc030-6.jpg
B
mc030-5.jpg
D
mc030-7.jpg mc030-8.jpg
 
 
For the following question(s), assume that x is in radians, if applicable.
 

 31. 

Given the functions mc031-1.jpg and mc031-2.jpg, what is the range of the composite function mc031-3.jpg?
A
mc031-4.jpg
C
mc031-5.jpg
B
cannot be determined
D
mc031-6.jpg
 

 32. 

Given the functions mc032-1.jpg and mc032-2.jpg, what is the simplified form of mc032-3.jpg?
A
mc032-4.jpg
C
mc032-6.jpg
B
mc032-5.jpg
D
mc032-7.jpg
 

 33. 

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

 34. 

Solve for the variable:
mc034-1.jpg = 252
A
15
C
6
B
mc034-2.jpg
D
mc034-3.jpg
 

 35. 

Prom’s friend gives him a row of Pascal’s triangle and asks which row it comes from. Prom adds the numbers and obtains a sum of 65 536. Which row do the numbers come from?
A
34
C
17
B
18
D
16
 

Short Answer
 

 1. 

a) Sketch the graph of each function sa001-1.jpg, and then sketch the graph of sa001-2.jpg.
i) sa001-3.jpg
ii) sa001-4.jpg
iii) sa001-5.jpg
b) State the domain and range of each f(x) and g(x).
 

 2. 

Solve by graphing using technology. Round the root(s) to one decimal place.
a) x4 + x3 + x2 + x = 1
b) 0.1x4 = x3 + x2
 

 3. 

Determine the exact value of sa003-1.jpg .
 

 4. 

Solve the equation sa004-1.jpg. Leave your answer in exact form.
 

 5. 

Consider the function sa005-1.jpg.
a) Determine the key features of the function:
      i) domain and range
      ii) intercepts
      iii) equations of any asymptotes
b) Sketch the graph of the function.
sa005-2.jpg
 

Problem
 

 1. 

Two wires are connected to a tower at the same point on the tower. Wire #1 makes an angle of 45° with the ground and wire #2 makes an angle of 60° with the ground.
a) Represent this situation with a diagram.
b) Which wire is longer? Explain.
c) If the point where the two wires connect to the tower is 35 m above the ground, determine exact expressions for the lengths of the two wires.
d) Determine the length of each wire, to the nearest tenth of a metre.
e) How do your answers to parts b) and d) compare?
 

 2. 

Cobalt-60, which has a half-life of 5.3 years, is used in medical radiology. A sample of 60 mg of the material is present today.
a) Write an equation to relate the amount of cobalt-60 remaining and the number of half-life periods.
b) What amount will be present in 10.6 years?
c) How many years will it take for the amount of cobalt-60 to decay to 12.5% of its initial amount?
 

 3. 

The pressure exerted on the floor by the heel of someone’s shoe is inversely proportional to the square of the width of the heel of the shoe. When Megumi wears 2-cm-wide heels, she exerts a pressure of 400 kPa.
a) Determine a function to represent the pressure, p, exerted by Megumi if she wears heels of width w.
b) Sketch the graph of this function.
c) If she wears spike heels with a width of 0.5 cm, what pressure does she exert?
 

 4. 

The revenue function for a school group selling n bookmarks is given by pr004-1.jpg, and the total cost function is given by pr004-2.jpg. Determine the number of bookmarks that need to be sold for the school group to break even.
 

 5. 

Expand and simplify: pr005-1.jpg.
 



 
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