Answer: 4.
- A 2
- B 4
- C 6
- D 8
Correct answer: B. 4
Explanation: Vertices are (0,0), (2,2), (−2,2). Base = 4, height = 2, area = 4.
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.