Name: 
 

Practice Final #15



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

 1. 

When the value of a is less than –1, the function mc001-1.jpg has what relationship to the base function mc001-2.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
 

 2. 

Given the graph of f(x) shown below, what are the coordinates of point A¢ if the equation of the transformed function is mc002-1.jpg?
mc002-2.jpg
A
mc002-3.jpg
C
mc002-5.jpg
B
mc002-4.jpg
D
mc002-6.jpg
 

 3. 

Which point on the graph mc003-1.jpg does not exist on the graph of mc003-2.jpg?
A
mc003-3.jpg
C
mc003-5.jpg
B
mc003-4.jpg
D
mc003-6.jpg
 

 4. 

Which graph shows the solution to the radical equation mc004-1.jpg?
A
mc004-2.jpg
C
mc004-4.jpg
B
mc004-3.jpg
D
mc004-5.jpg
 

 5. 

What is the solution to the radical equation mc005-1.jpg?
A
–4
C
4
B
12
D
128
 

 6. 

When solving the equation mc006-1.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
 

 7. 

Determine the equation of a circle with centre at the origin and radius 8.
A
mc007-1.jpg
C
mc007-3.jpg
B
mc007-2.jpg
D
mc007-4.jpg
 

 8. 

Which is a possible value of q, to the nearest hundredth of a radian, when cos q = –0.58?
A
–2.19
C
2.19
B
–0.62
D
0.84
 

 9. 

Which graph represents the function y = mc009-1.jpg sin (mc009-2.jpgq), where q is in radians?
A
mc009-3.jpg
C
mc009-5.jpg
B
mc009-4.jpg
D
mc009-6.jpg
 

 10. 

Which function is represented by the graph shown below, where x is in degrees?
mc010-1.jpg
A
y = sin(mc010-2.jpgx)
C
y = cos(mc010-4.jpgx)
B
y =mc010-3.jpg cos(x)
D
y =mc010-5.jpg sin(x)
 

 11. 

Which graph represents the sinusoidal function mc011-1.jpg?
A
mc011-2.jpg
C
mc011-4.jpg
B
mc011-3.jpg
D
mc011-5.jpg
 

 12. 

Solve mc012-1.jpg to three decimal places on the interval mc012-2.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
 

 13. 

Which expression is equivalent to mc013-1.jpg?
A
mc013-2.jpg
C
1
B
mc013-3.jpg
D
mc013-4.jpg
 

 14. 

Determine the exact value of mc014-1.jpg.
A
mc014-2.jpg
C
mc014-4.jpg
B
mc014-3.jpg
D
mc014-5.jpg
 

 15. 

Which expression is equivalent to mc015-1.jpg?
A
mc015-2.jpg
C
mc015-4.jpg
B
mc015-3.jpg
D
mc015-5.jpg
 

 16. 

What is the general solution, in radians, to the equation mc016-1.jpg?
A
mc016-2.jpg where mc016-3.jpg
C
mc016-4.jpg where mc016-5.jpg
B
no solution
D
mc016-6.jpg where mc016-7.jpg
 

 17. 

A bacteria colony initially has 1500 cells and doubles every week. Which function can be used to model the population, p, of the colony after t days?
A
mc017-1.jpg
C
mc017-3.jpg
B
mc017-2.jpg
D
mc017-4.jpg
 

 18. 

Mohamed purchased a car for $16 000. It depreciates by 20% of its current value every year. How much will the car be worth 8 years after it is purchased?
A
$80 000
C
$2684.35
B
$2000
D
$68 797.07
 

 19. 

Another way of writing mc019-1.jpg is
A
mc019-2.jpg
C
mc019-4.jpg
B
mc019-3.jpg
D
mc019-5.jpg
 

 20. 

Compared to the graph of the base function mc020-1.jpg, the graph of the function mc020-2.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
 

 21. 

Which graph represents the function mc021-1.jpg ?
A
mc021-2.jpg
C
mc021-4.jpg
B
mc021-3.jpg
D
mc021-5.jpg
 

 22. 

Which graph represents the function mc022-1.jpg?
A
mc022-2.jpg
C
mc022-4.jpg
B
mc022-3.jpg
D
mc022-5.jpg
 

 23. 

Which graph represents the function mc023-1.jpg?
A
mc023-2.jpg
C
mc023-4.jpg
B
mc023-3.jpg
D
mc023-5.jpg
 

 24. 

A graduate student determines that the relationship between the length, s, in metres, of the skull and the body mass, m, in kilograms, of a particular species can be expressed using the equation mc024-1.jpg. Determine the body mass of an animal with a skull size of 0.56 m. Round your answer to the nearest kilogram.
A
547 kg
C
343 kg
B
376 kg
D
313 kg
 

 25. 

Which rational function has the following characteristics?
• a vertical asymptote with equation mc025-1.jpg
• a horizontal asymptote with equation mc025-2.jpg
• a point of discontinuity at mc025-3.jpg
A
mc025-4.jpg
C
mc025-6.jpg
B
mc025-5.jpg
D
mc025-7.jpg
 

 26. 

Which function has a graph in the shape of a parabola?
A
mc026-1.jpg
C
mc026-3.jpg
B
mc026-2.jpg
D
none of the above
 

 27. 

Solve the equation mc027-1.jpg.
A
x = mc027-2.jpg
C
x = –6
B
x = –8
D
x = mc027-3.jpg
 

 28. 

Solve the equation mc028-1.jpg.
A
x = mc028-2.jpg
C
x = mc028-3.jpg
B
x = 3
D
x = 4
 

 29. 

Given the functions mc029-1.jpg and mc029-2.jpg, what is the domain of the combined function mc029-3.jpg?
A
cannot be determined
C
mc029-5.jpg
B
mc029-4.jpg
D
mc029-6.jpg
 

 30. 

If mc030-1.jpg and mc030-2.jpg, what is the simplified combined function mc030-3.jpg?
A
mc030-4.jpg
C
mc030-6.jpg
B
mc030-5.jpg
D
mc030-7.jpg
 

 31. 

Solve for the variable:
mc031-1.jpg
A
mc031-2.jpg
C
60
B
mc031-3.jpg
D
7
 

 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. 

Determine the 5th term in the expansion of mc033-1.jpg.
A
mc033-2.jpg
C
mc033-4.jpg
B
mc033-3.jpg
D
mc033-5.jpg
 

 34. 

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
 

 35. 

The leadership committee at a high school has 4 grade 10 students, 2 grade 11 students, and 6 grade 12 students. This year, 12 grade 10, 8 grade 11, and 10 grade 12 students applied for the committee. How many ways are there to select the committee?
A
2 910 600
C
733
B
100 590 336 000
D
163 136
 

Short Answer
 

 1. 

Solve by factoring.
a) x3 – 2x2 – 5x + 6 = 0
b) x3 – 3x2 – 4x + 12 = 0
c) x3 = 4x2
 

 2. 

Solve for x: sa002-1.jpg
 

 3. 

Graph the function sa003-1.jpg. Identify the domain, the range, and the equation of the vertical asymptote.
 

 4. 

Given the functions sa004-1.jpg and sa004-2.jpg, determine a simplified equation for sa004-3.jpg.
 

 5. 

Use the binomial theorem to expand sa005-1.jpg.
 

Problem
 

 1. 

For the base function pr001-1.jpg, a reflection in the y-axis is followed by a reflection in the x-axis.
a) Discuss the effect of each reflection on the base function.
b) Is there a point that you expect to be invariant during these reflections? If so, state its coordinates.
c) Graph the function after each reflection.
d) Use your graph in part c) to verify your answer for part b).
e) Make a general statement regarding invariant points after reflections in the x-axis and the y-axis.
 

 2. 

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

 3. 

Ranier has been researching the share price, V, of a stock for t weeks. The data are shown below.
Week
Price ($)
0
8.00
1
8.40
2
8.82
3
9.26
4
9.77
5
10.21
a) Make a scatter plot for the data.
b) Describe the shape of the curve.
c) Determine an equation to model the data.
d) Use the equation to determine the value of the stock in 9 weeks.
e) Approximately how long will it take for the share price of the stock to exceed $20?
 

 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. 

Write an equation for the graph of the rational function shown. Explain your reasoning.
pr005-1.jpg
 



 
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