Answer: 1.
- A 1
- B 5
- C 12
- D 7
Correct answer: A. 1
Explanation: Distance = |3(1) + 4(1) − 12| / √(3² + 4²) = 5/5 = 1.
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.