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Math 12 Pre-Calc Practice Final Exam #1



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

 1. 

When a > 0, the function mc001-1.jpg has what relationship to the base function mc001-2.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
 

 2. 

Which of the graphs shown below represents the base function mc002-1.jpg and the stretched function g(x) = mc002-2.jpgx2?
A
mc002-3.jpg
C
mc002-5.jpg
B
mc002-4.jpg
D
mc002-6.jpg
 

 3. 

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

 4. 

What is the equation of the transformed function, g(x), after the transformations are applied to the graph of the base function mc004-1.jpg, shown in blue, to obtain the graph of g(x), shown in red?
mc004-2.jpg
A
mc004-3.jpg
C
mc004-5.jpg
B
mc004-4.jpg
D
mc004-6.jpg
 

 5. 

What is the solution to the radical equation mc005-1.jpg?
A
6
C
7
B
8
D
–6
 

 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. 

One root of the equation mc008-1.jpg is
A
–3
C
9
B
3
D
–5
 

 9. 

Based on the graph of mc009-1.jpg, what are the real roots of mc009-2.jpg?
mc009-3.jpg
A
–6, –2, 2, 4
C
there are no real roots
B
6, 2, –2, –4
D
impossible to determine
 

 10. 

Determine the equation of a circle with centre at (3, –3) and radius 10.
A
mc010-1.jpg
C
mc010-3.jpg
B
mc010-2.jpg
D
mc010-4.jpg
 

 11. 

Determine the measure of the angle in standard position shown on the graph below. Round your answer to the nearest tenth of a degree.
mc011-1.jpg
A
161.6°
C
71.6°
B
341.6°
D
251.6°
 

 12. 

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)
 

 13. 

If the angle q is –5000° in standard position, it can be described as having made
A
mc013-1.jpg rotations
C
mc013-3.jpg rotations
B
mc013-2.jpg rotations
D
mc013-4.jpg rotations
 

 14. 

A ball is riding the waves at a beach. The ball’s up and down motion with the waves can be described using the formula mc014-1.jpg, where h is the height, in metres, above the flat surface of the water and t is the time, in seconds. What is the height of the ball, to the nearest hundredth of a metre, after t = 17 s?
A
–0.87 m
C
–1.99 m
B
–2.66 m
D
1.99 m
 

 15. 

Determine the point in quadrant II where the line represented by mc015-1.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)
 

 16. 

Which graph represents the function y = mc016-1.jpg sin (mc016-2.jpgq), where q is in radians?
A
mc016-3.jpg
C
mc016-5.jpg
B
mc016-4.jpg
D
mc016-6.jpg
 

 17. 

What is the period of the sinusoidal function mc017-1.jpg?
A
mc017-2.jpgp
C
mc017-4.jpgp
B
mc017-3.jpgp
D
mc017-5.jpgp
 

 18. 

Solve mc018-1.jpg to three decimal places on the interval mc018-2.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
 

 19. 

Which equation is a reciprocal identity?
A
mc019-1.jpg
C
mc019-3.jpg
B
mc019-2.jpg
D
mc019-4.jpg
 

 20. 

What does the expression mc020-1.jpgmc020-2.jpgmc020-3.jpg simplify to?
A
mc020-4.jpg
C
mc020-6.jpg
B
mc020-5.jpg
D
mc020-7.jpg
 

 21. 

Simplify mc021-1.jpg.
A
-1
C
0
B
1
D
undefined
 

 22. 

mc022-1.jpg is equivalent to
A
mc022-2.jpg
C
mc022-4.jpg
B
mc022-3.jpg
D
mc022-5.jpg
 

 23. 

mc023-1.jpg can be rewritten as
A
mc023-2.jpg
C
mc023-4.jpg
B
mc023-3.jpg
D
mc023-5.jpg
 

 24. 

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 mc024-1.jpg, where t is the time, in years. What is the domain of this function?
A
mc024-2.jpg
C
mc024-4.jpg
B
mc024-3.jpg
D
mc024-5.jpg
 

 25. 

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
 

 26. 

If mc026-1.jpg, mc026-2.jpg, and mc026-3.jpg, an algebraic expression in terms of s, v, and z for mc026-4.jpg is
A
v - 2s + 2z
C
v - 2(s - z)
B
v - 2(s + z)
D
v - 2s + z
 

 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. 

The eye size of many vertebrates is related to body mass by the logarithmic equation mc028-1.jpg, where E is the eye axial length, in millimetres, and m is the body mass, in kilograms. Predict the mass of a vertebrate with an eye axial length of 43 mm. Round your answer to the nearest hundredth of a kilogram.
A
2.66
C
1242.98
B
868.60
D
1.32
 

 29. 

Solve the equation mc029-1.jpg.
A
x = mc029-2.jpg
C
x = mc029-3.jpg
B
x = 3
D
x = 4
 

 30. 

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

 31. 

What is the value of 6!?
A
46 656
C
21
B
720
D
36
 

 32. 

Evaluate mc032-1.jpg.
A
32 432 400
C
6435
B
163 459 296 000
D
259 459 200
 

 33. 

Jenni and Hari go to a local Chinese restaurant for dim sum. If there are 20 items on the menu, and Jenni orders 7 items and Hari orders 11 items, which expression represents the total number of choices between them?
A
mc033-1.jpg
C
mc033-3.jpg
B
mc033-2.jpg
D
mc033-4.jpg
 

 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. 

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. 

Solve by graphing using technology. Round answers to one decimal place.
a) x3 – 7 > 0
b) sa001-1.jpg
 

 2. 

A population, p, of bears varies according to sa002-1.jpg, where t is the time, in years, and angles are measured in radians.
a) What are the maximum and minimum populations?
b) What is the first interval, in years and months, over which the population is increasing?
 

 3. 

Determine the value of sa003-1.jpg if sa003-2.jpg and sa003-3.jpg.
 

 4. 

What is the solution for sa004-1.jpg for sa004-2.jpg?
 

 5. 

Sketch the graph of the function sa005-1.jpg.
 

Problem
 

 1. 

Create a cubic polynomial inequality for which x = 3 or pr001-1.jpg is the solution. Explain your reasoning.
 

 2. 

a) For the given trigonometric ratio, determine two other angles that have the same value.
i) sin 45°
ii) tan 300°
iii) cos 120°
b) Explain how you determined the angles in part a).
 

 3. 

Wilson places a measuring tape on a pillar of a dock to record the water level in his local coastal community. He finds that a high tide of 1.77 m occurs at 5:17 a.m., and a low tide of 0.21 m occurs at 11:38 a.m.
a) Estimate the period of the fluctuation of the water level.
b) Estimate the amplitude of the pattern.
c) Predict when the next two high tides will occur.
d) Predict when the next two low tides will occur.
 

 4. 

Solve the equation pr004-1.jpg.
 

 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 of increase and decrease for both f and g. How do the sets of intervals compare?
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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