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1 | | Alexis got on her stationary bicycle and pedalled as hard as she could for 10 min. Which graph best shows her speed versus time?
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| | A) | A |
| | B) | B |
| | C) | C |
| | D) | D |
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2 | | Which of the relations shown is linear?
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| | A) | A |
| | B) | B |
| | C) | C |
| | D) | D |
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3 | | Which data set would represent discrete data? |
| | A) | Heights of students in your class. |
| | B) | Shoe sizes for students in your class. |
| | C) | The times required for students in your class to travel from home to your school. |
| | D) | All of these. |
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4 | | For a bicycle moving at 10 km/h, the distance travelled, d, in kilometres per hour, is given by d = 10t, where t is the time, in hours. Which statement is true? |
| | A) | t is the independent variable. |
| | B) | d is the independent variable. |
| | C) | t is the dependent variable. |
| | D) | None of these are true. |
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5 | | Consider the graph. Determine the domain and range.
(17.0K) |
| | A) | Domain: {x | x ∈ R, 0 ≤ x ≤ 7} Range: {y | y ∈ R, 0 ≤ y ≤ 3} |
| | B) | Domain: {x | x ∈ R, 1 ≤ x ≤ 4} Range: {y | y ∈ R, –4.5 ≤ y ≤ 0} |
| | C) | Domain: {x | x ∈ R, 1 ≤ x ≤ 7} Range: {y | y ∈ R, –4.5 ≤ y ≤ 3} |
| | D) | Domain: {x | x ∈ R, 0 ≤ x ≤ 7} Range: {y | y ∈ R, –4.5 ≤ y ≤ 3} |
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6 | | Select all of the functions from the list of relations.
A. (1, 1), (2, 4), (3, 9), (4, 16)
B. (–1, 0), (0, 1), (1, 2), (2, 3)
C. (–5, 1), (0, 2), (10, 3), (15, 4)
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| | A) | A |
| | B) | B |
| | C) | C |
| | D) | All of the relations are functions. |
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7 | | The volume, V, in cubic feet, of air that can be compressed into a scuba tank is given by the relation V = 0.64P, where P is the pressure, in atmospheres (atm). A tank is compressed to 30 atm. What volume of air does it hold, to the nearest cubic foot? |
| | A) | 47 ft3 |
| | B) | 31 ft3 |
| | C) | 29 ft3 |
| | D) | 19 ft3 |
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8 | | The cost, C, in dollars, of a catered social event is given by the relation C(n) = 250 + 40n, where n represents the number of guests. If you have $1250 to spend, how many guests can you invite?
(9.0K) |
| | A) | 37 |
| | B) | 31 |
| | C) | 25 |
| | D) | 20 |
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9 | | The amount of fuel, F, in gallons, remaining in the tanks of a small aircraft versus the flying time, t, in hours, is shown in the table. Which function correctly relates amount of fuel to time?
(5.0K) |
| | A) | F = 48 + t |
| | B) | F = 48 – t |
| | C) | F = 48 + 8t |
| | D) | F = 48 – 8t |
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10 | | Consider the graph. Which statement is true?
(9.0K)
A. The relation is not a function.
B. The domain is {x | x ∈ R, 1 ≤ x ≤ 6}.
C. The range is {y | y ∈ R, 1 ≤ y < 5}.
D. All of these are true.
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| | A) | The relation is not a function. |
| | B) | B |
| | C) | C |
| | D) | D |
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11 | | Ron flies his airplane a distance of 20 km over the ground. He gains 800 m in altitude over the flight. What is the slope of the line segment representing the flight? |
| | A) | 40 |
| | B) | 4 |
| | C) | |
| | D) | (0.0K) |
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12 | |
A line passes through the point P(2, 1) and has a slope of | (0.0K) | . What is another point on the same line? |
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| | A) | A(6, –2) |
| | B) | B(6, 4) |
| | C) | C(5, –1) |
| | D) | D(5, 5) |
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13 | | Mac drives his truck down a hill with a constant slope. He drops from 2400 m above sea level to 1800 m above sea level. During this time he moves 12 km horizontally closer to his destination. Express the descent as a rate of change in metres per kilometre.
(5.0K) |
| | A) | 200 m/km |
| | B) | 150 m/km |
| | C) | 50 m/km |
| | D) | |
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