Answer: 5.
- A 3
- B 4
- C 5
- D 7
Correct answer: C. 5
Explanation: Distance = sqrt(3² + 4²) = sqrt(9+16) = sqrt(25) = 5 (3-4-5 Pythagorean triple).
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.