Big Ideas Math Integrated I, 2016
BI
Big Ideas Math Integrated I, 2016 View details
Chapter Review
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Exercise 9 Page 489

Are the points collinear?

Yes, we can assume that they are coplanar.

Practice makes perfect

Note that A and B lie on the same line and C is not on this line. Thus, the points are not collinear. Three noncollinear points are enough to make a plane unique. Therefore, the three points lie on the same plane.