Answer: (4,6).
- A (3,5)
- B (4,6)
- C (5,6)
- D (4,5)
Correct answer: B. (4,6)
Explanation: Midpoint = ((2+6)/2, (4+8)/2) = (4,6).
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.