Answer: (2,2).
- A (2,2)
- B (3,3)
- C (4,4)
- D (1,1)
Correct answer: A. (2,2)
Explanation: Centroid = ((0+6+0)/3, (0+0+6)/3) = (2,2).
The slope of a line is the ratio of vertical change (rise) to horizontal change (run) between any two points on it - equivalently, the tangent of the angle θ the line makes with the positive x-axis.