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

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

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

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)?

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)

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)

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?

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?

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?

a.between 0-­4 minutes

b. between 8­-14 minutes

c. between 14­-16 minutes

d. between 16 and 24 minutes