Answer: (3,0).
- A (3,0)
- B (0,4)
- C (3,4)
- D (4,3)
Correct answer: A. (3,0)
Explanation: Perpendicular from (3,4) to x-axis hits x-axis at (3,0).
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.