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Math 12 Pre-Calc LG 12 Practice Unit Test #2



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

 1. 

mc001-1.jpgmc001-2.jpg radians is equal to how many degrees?
A.
240°
C.
420°
B.
150°
D.
330°
 

 2. 

Determine the equation of a circle with centre at (3, –3) and radius 10.
A.
mc002-1.jpg
C.
mc002-3.jpg
B.
mc002-2.jpg
D.
mc002-4.jpg
 

 3. 

Which graph represents an angle in standard position with a measure of mc003-1.jpgp rad?
A.
mc003-2.jpg
C.
mc003-4.jpg
B.
mc003-3.jpg
D.
mc003-5.jpg
 

 4. 

Which graph represents an angle in standard position with a measure of 135°?
A.
mc004-1.jpg
C.
mc004-3.jpg
B.
mc004-2.jpg
D.
mc004-4.jpg
 

 5. 

Determine the measure of the angle in standard position shown on the graph below. Round your answer to the nearest tenth of a degree.
mc005-1.jpg
A.
161.6°
C.
71.6°
B.
341.6°
D.
251.6°
 

 6. 

Identify a measure for the central angle q in the interval mc006-1.jpg such that point (mc006-2.jpg, mc006-3.jpg) is on the terminal arm.
A.
mc006-4.jpg
C.
mc006-6.jpg
B.
mc006-5.jpg
D.
mc006-7.jpg
 

 7. 

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
 

 8. 

Which function is represented by the graph shown below, where x is in degrees?
mc008-1.jpg
A.
y = sin(mc008-2.jpgx)
C.
y = cos(mc008-4.jpgx)
B.
y =mc008-3.jpg cos(x)
D.
y =mc008-5.jpg sin(x)
 

 9. 

What is the amplitude of the sinusoidal function mc009-1.jpg?
A.
mc009-2.jpg
C.
–5
B.
–8
D.
7
 

 10. 

Which graph represents the sinusoidal function mc010-1.jpg?
A.
mc010-2.jpg
C.
mc010-4.jpg
B.
mc010-3.jpg
D.
mc010-5.jpg
 

 11. 

What are the solutions for mc011-1.jpgmc011-2.jpg = 0 in the interval mc011-3.jpg?
A.
mc011-4.jpg mc011-5.jpg mc011-6.jpg mc011-7.jpg
C.
x = 90° and 270° mc011-9.jpg
B.
x = 30° and 210° mc011-8.jpg
D.
x = 60° and 240° and 45°
 
 
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.
 

 12. 

What is the piston’s minimum height?
A.
14 cm
C.
0 cm
B.
–14 cm
D.
7 cm
 

 13. 

Solve mc013-1.jpg, to the nearest tenth of a degree, if necessary, on the interval mc013-2.jpg .
A.
x = 53.1°, x = 126.9°
C.
x = 36.9°, x = 323.1°
B.
x = 126.9°, x = 233.1°
D.
x = 53.1°, x = 306.9°
 

 14. 

What is an equivalent expression for mc014-1.jpg?
A.
mc014-2.jpg
C.
mc014-4.jpg
B.
mc014-3.jpg
D.
mc014-5.jpg
 

 15. 

Express mc015-1.jpg in terms of cosine and sine only, and simplify.
A.
0
C.
1
B.
mc015-2.jpg
D.
mc015-3.jpg
 

 16. 

Simplify mc016-1.jpg. Round your answer to the nearest hundredth.
A.
0.47
C.
–0.75
B.
–1.15
D.
0.42
 

 17. 

Which expression is equivalent to mc017-1.jpg?
A.
mc017-2.jpg
C.
mc017-4.jpg
B.
mc017-3.jpg
D.
mc017-5.jpg
 

 18. 

What is the solution to the equation mc018-1.jpg over the domain mc018-2.jpg?
A.
mc018-3.jpg
C.
mc018-5.jpg
B.
mc018-4.jpg
D.
mc018-6.jpg
 

 19. 

What is the general solution, in degress, to the equation mc019-1.jpg?
A.
mc019-2.jpg. where mc019-3.jpg
C.
mc019-6.jpg, where mc019-7.jpg
B.
mc019-4.jpg, where mc019-5.jpg
D.
mc019-8.jpg, where mc019-9.jpg
 

 20. 

What is the general solution, in radians, to the equation mc020-1.jpg?
A.
mc020-2.jpg, where mc020-3.jpg
C.
no solution
B.
mc020-4.jpg, where mc020-5.jpg
D.
mc020-6.jpg, where mc020-7.jpg
 

Short Answer
 

 1. 

Given a circle of diameter 21 cm, determine the arc length subtended by a central angle of 1.2 radians.
 

 2. 

Angles A and B are located in the first quadrant. If sa002-1.jpg  and sa002-2.jpg, determine the exact value of sec A + sec B.
 

 3. 

A grandfather clock shows a time of 7 o’clock. What is the exact radian measure of the angle between the hour hand and the minute hand?
 

 4. 

Sketch the graph of sa004-1.jpg for two cycles and state the domain, range, period, and equations of the asymptotes. x is measured in radians.
 

 5. 

Find the exact value of sa005-1.jpg .
 

Problem
 

 1. 

A bicycle tire revolves at 150 rpm (revolutions per minute). What is its angular velocity, in radians per second, rounded to two decimal places?
 

 2. 

Sketch the graph of pr002-1.jpg for pr002-2.jpg.
 

 3. 

Prove the identity pr003-1.jpg.
 



 
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