Ask a New Question

Question

Which set of points are collinear?
a.)A(-1,5); B(2,6); C(4,7)
b.)A(0,0); B(1/2,3); C(1,5)
c.)A(-4,-2); B(0,-4); C(2,-5)
when i graph them they all look straight to me but the one I pick is
A(-1,5); B(2,6); C(4,7)
15 years ago

Answers

Reiny
To be collinear, line segments have to be parallel, and a point must be common

for your choice
slopeAB=1/3, slope BC=1/2
so they are not parallel

b) slopeAB = 3/(1/2) = 6 , slope BC = 2/(1/2) = 4
not parallel

c) slopeAB = -2/4 = -1/2 , slope BC = -1/2
so the correct choice is c)

15 years ago

Related Questions

Which set of points are collinear? a.)A(-1,5); B(2,6); C(4,7) b.)A(0,0); B(1/2,3); C(1,5) c.)A(-4... 22 points in game 1,18 points in game2, 20 in game 3 what was their mean score for these 3 games i... Points EC bisects points AD at C. For each of the following, find the value of 'x' and the measure o... 1. _____ Two points are collinear. A. Any B. No C. Sometimes Is the answer A? Points A, B, and C are collinear, and B is the midpoint. If AC = 5x – 8 and AB = 2x + 2, what is BC... name points and counter points (pros and cons) Every expansion of civilization makes for peace. I... original points moved 4 points left and 2 points down does that make the new points translation or c... original points moved 4 points left and 2 points down does that make the new points translation or c... graph 1:0:2 points, 1: 4 points, 2: 5 points, 3:3 points, 4:2 points, 5: 2 points graph 2 4: no poi...
Ask a New Question
Archives Contact Us Privacy Policy Terms of Use