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Practice Final #10



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

 1. 

In the following graph, which transformations must be applied to the blue curve to obtain the red curve?
mc001-1.jpg
A
a reflection in the x-axis, a vertical translation of 4 units up, and a horizontal translation of 3 units to the right
B
a reflection in the x-axis, a vertical translation of 3 units up, and a horizontal translation of 4 units to the right
C
a reflection in the x-axis, a vertical translation of 3 units down, and a horizontal translation of 4 units to the right
D
a reflection in the x-axis, a vertical translation of 4 units up, and a horizontal translation of 3 units to the left
 

 2. 

In the graph shown, which transformations must be applied to the blue curve to obtain the red curve?
mc002-1.jpg
A
a reflection in the x-axis and a translation of 5 units down
B
a reflection in the y-axis and a translation of 5 units up
C
a reflection in the x-axis and a translation of 5 units up
D
a reflection in the y-axis and a translation of 5 units down
 

 3. 

Which of the following graphs represents the graph of the function mc003-1.jpg transformed to mc003-2.jpg?
A
mc003-3.jpg
C
mc003-5.jpg
B
mc003-4.jpg
D
mc003-6.jpg
 

 4. 

Which of the following functions is the correct inverse for the function mc004-1.jpg,
{x | x ³ 0, x Î R}?
A
mc004-2.jpg = mc004-3.jpg
C
mc004-6.jpg = mc004-7.jpg
B
mc004-4.jpg = mc004-5.jpg
D
mc004-8.jpg = mc004-9.jpg
 

 5. 

Which of the following relations is the correct inverse for the function mc005-1.jpg?
A
mc005-2.jpg = mc005-3.jpgmc005-4.jpg
C
mc005-7.jpg = mc005-8.jpgmc005-9.jpg
B
mc005-5.jpg = 7mc005-6.jpg
D
mc005-10.jpg = –7mc005-11.jpg
 

 6. 

Which graph represents the inverse of the graph shown?
mc006-1.jpg
A
mc006-2.jpg
C
mc006-4.jpg
B
mc006-3.jpg
D
mc006-5.jpg
 

 7. 

The equation of the inverse of mc007-1.jpg is
A
mc007-2.jpg
C
mc007-4.jpg
B
mc007-3.jpg
D
mc007-5.jpg
 

 8. 

The two functions in the graph shown are reflections of each other. Select the type of reflection(s).
mc008-1.jpg
A
a reflection in the y-axis
C
a reflection in the line y = x
B
a reflection in the x-axis and the y-axis
D
a reflection in the x-axis
 

 9. 

Which is the graph of the square root of the function mc009-1.jpg?
A
mc009-2.jpg
C
mc009-4.jpg
B
mc009-3.jpg
D
mc009-5.jpg
 

 10. 

Which of the following functions is the correct inverse for the function mc010-1.jpg, {x | x ³ 0, x Î R}?
A
mc010-2.jpg = mc010-3.jpg
C
mc010-6.jpg
B
mc010-4.jpg = mc010-5.jpg
D
mc010-7.jpg = mc010-8.jpg
 

 11. 

Which graph represents the square root of the graph shown?
mc011-1.jpg
A
mc011-2.jpg
C
mc011-4.jpg
B
mc011-3.jpg
D
mc011-5.jpg
 

 12. 

If mc012-1.jpg is divided by mc012-2.jpg to give a quotient of mc012-3.jpg and
a remainder of –952, then which of the following is true?
A
mc012-4.jpgmc012-5.jpg = –952
B
mc012-6.jpg = mc012-7.jpgmc012-8.jpg – 952
C
mc012-9.jpgmc012-10.jpg = 952
D
mc012-11.jpg= mc012-12.jpgmc012-13.jpg + 952
 

 13. 

For a polynomial P(x), if mc013-1.jpg = 0, then which of the following must be a factor of P(x)?
A
mc013-2.jpg
C
mc013-4.jpg
B
mc013-3.jpg
D
mc013-5.jpg
 

 14. 

Which of the following is the fully factored form of mc014-1.jpg?
A
mc014-2.jpg
C
mc014-4.jpg
B
mc014-3.jpg
D
mc014-5.jpg
 

 15. 

Which of the following is not an asymptote of the function mc015-1.jpg?
A
x = mc015-2.jpgp
C
x = mc015-4.jpgp
B
x = mc015-3.jpgp
D
mc015-5.jpg
 
 
Use the following information to answer the questions.

The height, h, in metres, above the ground of a car as a Ferris wheel rotates can be modelled by the function nar001-1.jpg, where t is the time, in seconds.
 

 16. 

What is the radius of the Ferris wheel?
A
9 m
C
19 m
B
18 m
D
36 m
 

 17. 

How long does it take for the wheel to revolve once?
A
mc017-1.jpg s
C
160 s
B
80 s
D
mc017-2.jpg s
 

 18. 

What is the minimum height of a car?
A
19 m
C
160 m
B
1 m
D
80 m
 

 19. 

What is the maximum height of a car?
A
19 m
C
160 m
B
80 m
D
37 m
 

 20. 

Which of the following sets is the set of reciprocal trigonometric ratios?
A
csc mc020-1.jpg, sec mc020-2.jpg, and cot mc020-3.jpg
C
sin mc020-7.jpg, csc mc020-8.jpg, and cot mc020-9.jpg
B
sec mc020-4.jpg, cos mc020-5.jpg, and cot mc020-6.jpg
D
csc mc020-10.jpg, sec mc020-11.jpg, and tan mc020-12.jpg
 

 21. 

Which choice best describes the function mc021-1.jpg?
A
both increasing and decreasing
C
increasing
B
decreasing
D
neither increasing nor decreasing
 

 22. 

Which set of properties is correct for the function mc022-1.jpg?
A
domain mc022-2.jpg, range mc022-3.jpg
C
domain mc022-6.jpg, range mc022-7.jpg
B
domain mc022-4.jpg, range mc022-5.jpg
D
domain mc022-8.jpg, range mc022-9.jpg
 

 23. 

The equation mc023-1.jpg can also be written as
A
mc023-2.jpg
C
mc023-4.jpg
B
mc023-3.jpg
D
mc023-5.jpg
 

 24. 

Which function is represented by the following graph?
mc024-1.jpg
A
mc024-2.jpg
C
mc024-4.jpg
B
mc024-3.jpg
D
mc024-5.jpg
 

 25. 

Which graph represents the function mc025-1.jpg?
A

mc025-2.jpg
C

mc025-4.jpg
B

mc025-3.jpg
D

mc025-5.jpg
 

 26. 

Which equation can be used to model the given information, where the population has been rounded to the nearest whole number?
Year (x)
Population (y)
0
100
1
104
2
108
3
112
4
117
5
122
A
mc026-1.jpg
C
mc026-3.jpg
B
mc026-2.jpg
D
mc026-4.jpg
 

 27. 

Solve for x.
mc027-1.jpg
A
0.3
C
6
B
7
D
3.0
 

 28. 

Which graph represents the inverse of mc028-1.jpg?
A
mc028-2.jpg
C
mc028-4.jpg
B
mc028-3.jpg
D
mc028-5.jpg
 

 29. 

What is true about the behaviour of the function mc029-1.jpg as mc029-2.jpg mc029-3.jpgmc029-4.jpg (right to left)?
A
mc029-5.jpg
C
mc029-7.jpg
B
mc029-6.jpg
D
f(x) is undefined
 

 30. 

Which of the following functions has a slant asymptote when graphed?
A
mc030-2.jpg
C
mc030-4.jpg
B
mc030-3.jpg
D
all of the above
 

 31. 

Which function has vertical asymptotes with equations mc031-1.jpg and mc031-2.jpg mc031-3.jpg?
A
mc031-4.jpg
C
mc031-6.jpg
B
mc031-5.jpg
D
mc031-7.jpg
 

 32. 

Which graph represents mc032-1.jpg?
A
mc032-2.jpg
C
mc032-4.jpg
B
mc032-3.jpg
D
mc032-5.jpg
 
 
For the following question(s), assume that x is in radians, if applicable.
 

 33. 

Given the functions mc033-1.jpg and mc033-2.jpg, the graph of the combined function mc033-3.jpg most likely resembles
A
mc033-4.jpg
C
mc033-6.jpg
B
mc033-5.jpg
D
mc033-7.jpg
 

 34. 

Given the functions mc034-1.jpg and mc034-2.jpg, a graph of the combined function mc034-3.jpg most likely resembles
A
mc034-4.jpg
C
mc034-6.jpg
B
mc034-5.jpg
D
mc034-7.jpg
 

 35. 

An equation for the graph shown is most likely

mc035-1.jpg
A
mc035-2.jpg
C
mc035-4.jpg
B
mc035-3.jpg
D
mc035-5.jpg
 

Short Answer
 

 1. 

The water level at an ocean inlet has a depth, d, in metres, that varies with the time, t, in hours after midnight, according to the equation sa001-1.jpg. What is the water depth at 2:30 a.m., to the nearest hundredth of a metre?
 

 2. 

For the function sa002-1.jpg,
a) describe the transformations of the function when compared to the function sa002-2.jpg
b) sketch the graph of the given function and sa002-3.jpg on the same set of axes
c) state the domain, the range, and the equation of the asymptote
 

 3. 

Sketch the graph of the function sa003-1.jpg.
 

 4. 

A certain type of exponential growth can be described by the equation sa004-1.jpg, where sa004-2.jpg is the initial amount; k is the doubling time, in years; and N is the amount after time, t, in years, has passed. Suppose that the population of a small town doubles every 25 years. How long does it take to triple, to the nearest tenth of a year?
 

 5. 

Show that sa005-1.jpg.
 

Problem
 

 1. 

Solve pr001-1.jpg algebraically. Display your result on a number line.
 

 2. 

In DABC, c = 11 cm, b = 7 cm, and ÐB = 38°.
a) Sketch possible diagrams for this situation.
b) Determine the measure, to the nearest degree, of ÐC in each diagram.
c) Find the measure of ÐA in each diagram.
d) Calculate the length of BC in each diagram.
 

 3. 

When a pendulum that is 0.5 m long swings back and forth, its angular displacement, q, in radians, from rest position is given by pr003-1.jpg, where t is the time, in seconds. At what time(s) during the first 4 s is the pendulum displaced 1 cm vertically above its rest position? (Assume the pendulum is at its rest position at t = 0.)
 

 4. 

Ingrid is docking a motorboat. She turns off the power and lets the boat coast toward the dock. The distance, d, in metres, between the boat and the dock as a function of time, t, in seconds, is given by pr004-1.jpg.
a) What is the average velocity of the boat during the time interval from when Ingrid turns the boat off to when it meets the dock?
b) Determine the velocity of the boat when Ingrid turns off the power, to one decimal place.
c) Determine the velocity of the boat when it meets the dock, to one decimal place.
d) Sketch the graph of the function. On the same set of axes, sketch the graph of the speed of the boat in relation to the time.
 

 5. 

a) Use the asymptotes and intercepts to make a quick sketch of the function pr005-1.jpg and its reciprocal pr005-2.jpg on the same set of axes.
b) Describe the symmetry in the graphs in part a).
c) Determine the equation of the mirror line in your graph from part a).
d) Determine intervals where f is positive and where f is negative. Determine intervals where g is positive and where g is negative. How do the two sets of intervals compare to each other?
e) Does the pattern from part d) occur for all pairs of functions pr005-3.jpg and pr005-4.jpg, pr005-5.jpg? Explain why or why not.
 



 
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