Name: 
 

Math 12 Pre-Calc Practice Final #2



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

 2. 

The function mc002-1.jpg represents a transformation that can best be described as
A
a reflection in the x-axis
C
a reflection in the y-axis
B
a reflection in the x-axis and the y-axis
D
a reflection in the line y = x
 

 3. 

What are the coordinates of the invariant point(s) when the function mc003-1.jpg is reflected in the y-axis?
A
(2, –2)
C
(0, –2)
B
(–2, 0) and (2, 0)
D
(0, 2)
 

 4. 

When the value of a is less than –1, the function mc004-1.jpg has what relationship to the base function mc004-2.jpg?
A
f(x) is compressed vertically
B
f(x) is reflected and compressed vertically
C
f(x) is stretched vertically
D
f(x) is reflected and stretched vertically
 

 5. 

Compared to the graph of the base function mc005-1.jpg, the graph of the function mc005-2.jpg is translated
A
2 units up
C
2 units to the left
B
2 units to the right
D
2 units down
 

 6. 

Compared to the graph of the base function mc006-1.jpg, the graph of the function mc006-2.jpg is
A
compressed by a factor of mc006-3.jpg and not reflected
B
stretched by a factor of 5 and reflected in the y-axis
C
compressed by a factor of mc006-4.jpg and reflected in the y-axis
D
stretched by a factor of 5 and not reflected
 

 7. 

What is the equation of the radical function shown in the graph below?
mc007-1.jpg
A
mc007-2.jpg
C
mc007-4.jpg
B
mc007-3.jpg
D
mc007-5.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. 

Which graph shows the solution to the radical equation mc009-1.jpg?
A
mc009-2.jpg
C
mc009-4.jpg
B
mc009-3.jpg
D
mc009-5.jpg
 

 10. 

What is the remainder when mc010-1.jpg is divided by mc010-2.jpg?
A
1070
C
962
B
–1070
D
–962
 

 11. 

If mc011-1.jpg is divided by mc011-2.jpg, what is the remainder?
A
–160
C
160
B
–320
D
320
 

 12. 

A factor of mc012-1.jpg is     
A
mc012-2.jpg
C
mc012-3.jpg
B
x – 5
D
x – 8
 

 13. 

Given the function mc013-1.jpg, what are the parameters of the transformed function
y = mc013-2.jpgmc013-3.jpg and what is the effect of each parameter on the graph of the original function?
A
a = mc013-4.jpg, vertical stretch about the x-axis by a factor of mc013-5.jpg
h = –8, horizontal translation 8 units right
k = 2, vertical translation 2 units down
B
a = mc013-6.jpg, vertical stretch about the x-axis by a factor of mc013-7.jpg
h = 2, horizontal translation 2 units left
k = –8, vertical translation 8 units right
C
a = mc013-8.jpg, vertical stretch about the x-axis by a factor of mc013-9.jpg
h = 2, horizontal translation 2 units right
k = –8, vertical translation 8 units down
D
a = mc013-10.jpg, vertical stretch about the x-axis by a factor of mc013-11.jpg
h = 2, horizontal translation 2 units right
k = –8, vertical translation 8 units down
 

 14. 

Determine the arc length of a circle with radius 5.5 cm if it is subtended by a central angle of mc014-1.jpgmc014-2.jpg radians. Round your answer to one decimal place.
A
1.4 cm
C
4.4 cm
B
43.2 cm
D
6.9 cm
 

 15. 

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 mc015-1.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
 

 16. 

Which function is represented by the graph shown below, where q is in radians?
mc016-1.jpg
A
y = mc016-2.jpgsin(mc016-3.jpgx)
C
y =mc016-6.jpg cos(mc016-7.jpgx)
B
y =mc016-4.jpg sin(mc016-5.jpgx)
D
y = mc016-8.jpgcos(mc016-9.jpgx)
 

 17. 

Given the trigonometric function mc017-1.jpg, find the value of the y-coordinate of the point with x-coordinate –1200°.
A
mc017-2.jpg
C
mc017-4.jpg
B
mc017-3.jpg
D
mc017-5.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.
 

 18. 

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

 19. 

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

 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. 

What is the solution to the equation mc021-1.jpg over the domain mc021-2.jpg?
A
60° and 240°
C
no solution
B
120°, 180°, and 240°
D
120°
 

 22. 

The domain of the function mc022-1.jpg is
A
mc022-2.jpg
C
mc022-4.jpg
B
mc022-3.jpg
D
mc022-5.jpg
 

 23. 

Compared to the graph of the base function mc023-1.jpg, the graph of the function mc023-2.jpg is translated
A
4 units to the left
C
4 units up
B
4 units down
D
4 units to the right
 

 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. 

Compared to the graph of the base function mc025-1.jpg, the graph of the function mc025-2.jpg is
A
translated down 10 units and left 6 units, horizontally stretched by a factor of mc025-3.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 mc025-5.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 mc025-4.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 mc025-6.jpg, not reflected in the y-axis, vertically stretched by a factor of 3, and not reflected in the x-axis
 

 26. 

Which graph represents the function mc026-1.jpg?
A
mc026-2.jpg
C
mc026-4.jpg
B
mc026-3.jpg
D
mc026-5.jpg
 

 27. 

Solve the equation mc027-1.jpg.
A
x = –3
C
x = mc027-3.jpg
B
x = mc027-2.jpg
D
x = 8, x = –9
 

 28. 

Solve the equation mc028-1.jpg.
A
mc028-2.jpg
C
no solution
B
x = 2, x = 9
D
mc028-3.jpg mc028-4.jpg
 

 29. 

Given the functions mc029-1.jpg and mc029-2.jpg, determine an equation for the combined function mc029-3.jpg.
A
mc029-4.jpg
C
mc029-6.jpg
B
mc029-5.jpg
D
mc029-7.jpg
 

 30. 

If mc030-1.jpg and mc030-2.jpg, what are the restrictions on the domain 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
 

 31. 

Evaluate mc031-1.jpg.
A
32 432 400
C
6435
B
163 459 296 000
D
259 459 200
 

 32. 

An orchestra has 2 violinists, 3 cellists, and 4 harpists. Assume that the players of each instrument have to sit together, but they can sit in any position in their own group. In how many ways can the conductor seat the members of the orchestra in a line?
A
144
C
24
B
72
D
1728
 

 33. 

For which of the following terms is a = 55 in the expansion of (x + y)11?
A
mc033-1.jpg
C
mc033-3.jpg
B
mc033-2.jpg
D
mc033-4.jpg
 

 34. 

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
 

 35. 

Suppose that 10 non-collinear points are plotted on a plane. Which expression represents the number of triangles that can be formed using these points?
A
mc035-1.jpg
C
mc035-3.jpg
B
mc035-2.jpg
D
mc035-4.jpg
 

Short Answer
 

 1. 

a) Sketch the graph of sa001-1.jpgfor each base function.
i) sa001-2.jpg
ii) sa001-3.jpg
iii) sa001-4.jpg
b) Write the equation for g(x) to represent a single stretch that results in the same graph as in each function in part a).
c) Describe how each stretch affects the domain and range for each function.
 

 2. 

a) Sketch the graph of each function sa002-1.jpg, and then sketch the graph of sa002-2.jpg.
i) sa002-3.jpg
ii) sa002-4.jpg
iii) sa002-5.jpg
b) State the domain and range of each f(x) and g(x).
 

 3. 

Factor fully.
a) x3 + 6x2 + 11x + 6
b) 4x3 – 11x2 – 3x
c) x4 – 81
 

 4. 

Find the exact value of sa004-1.jpg .
 

 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 skydivers jump out of a plane. The first skydiver’s motion can be modelled by the function pr001-1.jpg. The second skydiver jumps 10 s later with a goal of catching up to the first skydiver. The motion of the second skydiver can be modelled by pr001-2.jpg. For both functions, the height is measured in metres and the time is the number of seconds after the second skydiver jumps.
a) Graph the functions on the same set of axes.
b) Will the second skydiver catch up to the first before they have to open their parachutes at 800 m?
c) State the domain and range of these functions in this context.
 

 2. 

Sketch the graphs of pr002-1.jpg, pr002-2.jpg, and pr002-3.jpg, and then describe the pattern in terms of n for pr002-4.jpg.
 

 3. 

Prove that pr003-1.jpg.
 

 4. 

A vehicle depreciates 20% in value in the first year and 10% in each year after the first.
a) Write a function, pr004-1.jpg, to describe the value of the vehicle after 1 year in terms of the original cost, c.
b) Write a function, pr004-2.jpg, to describe the value after n years in terms of the original cost, c.
c) If the original value of the vehicle is $45 000, what is its value after 5 years?
 

 5. 

The chorus of a play has 17 females and 13 males. The director wishes to meet with 6 of them to discuss the upcoming production.
a) How many selections are possible?
b) How many selections are possible if the group consists of three females and three males?
c) One of the male students is named Ajay. How many six-member selections consisting of Ajay, two other males, and three females are possible?
 



 
Check Your Work     Start Over