Discussion
The points A(1, 5), B(2, 3) and C(-2, 11) are:
Answer: A
Three points are collinear if the slope between any two pairs of points is the same.
Slope of AB = \(\frac{y_2 - y_1}{x_2 - x_1} = \frac{3 - 5}{2 - 1} = \frac{-2}{1} = -2\).
Slope of BC = \(\frac{y_3 - y_2}{x_3 - x_2} = \frac{11 - 3}{-2 - 2} = \frac{8}{-4} = -2\).
Since the slope of AB is equal to the slope of BC, the points A, B, and C lie on the same straight line and are collinear.
No comment is present. Be the first to comment.
Loading…
Post your comment
Please log in or register to post a comment.
Examination Categories
- SSC Exams
- Banking Exams
- Teaching Exams
- Civil Services Exams
- Railways Exams
- Engineering Recruitment Exams
- Defence Exams
- State Government Exams
- Police Exams
- Insurance Exams
- Nursing Exams
- Other Government Exams
- NRA CET
- PG Entrance Exams
- Campus Placement
- MBA Entrance Exams
- CUET and UG Entrance
- Judiciary Exams
- Regulatory Body Exams
- Software Development