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- 1. Multiple Choice
Assume two ducks start from points A(-4,4) and B(10,-2) and fly at the same speed. How far will each duck fly (to the nearest mile) before they collide?

8 miles

10 miles

38 miles

40 miles

- 2. Multiple Choice
What is the slope of the line shown?

6/11

-6/11

-11/6

11/6

- 3. Multiple Choice
Two weather balloons travel around the globe along great circles that meet at right angles. How many times do their flight paths intersect?

3

0

2

1

- 4. Multiple Choice
What is an equation in point-slope form for the line perpendicular to y = 2x + 13 that contains (8, –4)?

y + 4 = - (1/2)(x – 8)

x + 4 = 2(y – 8)

y + 4 = 2(x – 8)

y + 8 = - (1/2)(x – 4)

- 5. Multiple Choice
Is the line through points P(–3, –2) and Q(2, 3) perpendicular to the line through points R(10, –1) and S(15, –6)? Explain.

No, their slopes are not opposite reciprocals.

No, their slopes are not equal.

Yes, their slopes are opposite reciprocals.

Yes, their slopes are equal.

- 6. Multiple Choice
What is the equation in point-slope form for the line parallel to y = 5x – 4 that contains P(–6, 1)?

x – 1 = –5(y + 6)

y + 1 = 5(x + 6)

y – 1 = –5(x + 6)

y – 1 = 5(x + 6)

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