Correctly answer all of the following multiple choice questions and provide explanation for answer. Double check all answers.

1. Find the set of points that are part of a line that is perpendicular to the line y = ­-3x

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a. (­-3, ­-3), (3, ­-5)

b. (­-6, ­-1), (3, 2)

c. (­-1, ­-1), (1, 5)

d. (3, ­-6), (-­1, 6)

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2. Determine the value of r such that the line through (5, r) and (2, 3) is perpendicular to the line y = 2x ­- 4

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a. r = 1.5

b. r = 9

c. r = ­- 3

d. r = 4.5

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3. Which line set of points are part of a line that is parallel to the line y = (-⅔)x ­ + 1

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a. (5, 0), (­-1, 4

b. (2, 0), (2, -­1)

c. (2, ­-2), (6, 4)

d. (3, -­2), (6, 0)

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4. Which line is parallel to the line that passes through the points (4, 9), (11, 9)?

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a. x = 4

b. y = 3

c. y = x + 4

d. y = ­x -­ 3

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5. Find the slope of the line that passes through the points (4, 2) and (­-3, ­-5)

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a. -3

b. 1

c. -⅓

d. 9/5

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6. Find the slope of the line that passes through the points (­-8, ­-3) and (2, 3)

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a. 0

b. 1

c. 3/5

d. 5/3

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7. What is the slope of the line shown in the graph?

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a.

b. -⅔

c. 2/3

d. 3/2

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The Washington Monument, in Washington, D.C., is 555 feet 5 ⅛ inches tall and weighs 90,854 tons. The monument is topped by a square aluminum pyramid. The sides of the pyramid’s base measure 5.6 inches, and the pyramid is 8.9 inches tall. Estimate the slope that a face of the pyramid makes with its base. Round to the nearest tenth.

a. 163.7

b. 3.2

c. 1.6

d. 0.3

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Mr. and Mrs. Wellman are taking their daughter to college.The table shows their distance from home after Various amounts of time.

During which hours was the family most likely stopped?

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a. between 0­-1 hours

b. between 1-­2 hours

c. between 2-­3 hours

d. between 3­-4 hours

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Mary Sue is training for a 5k run. She ran for 24 minutes a shown on the graph below.

During which range did Mary Sue run the fastest?

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a.between 0-­4 minutes

b. between 8­-14 minutes

c. between 14­-16 minutes

d. between 16 and 24 minutes

 

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