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6 questions
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
What is the slope of the line shown?
6/11
-6/11
-11/6
11/6
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
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)
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.
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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