Answer: equal to −1/2.
- A equal to −1/2
- B equal to 2
- C equal to 1/2
- D equal to −2
Correct answer: A. equal to −1/2
Explanation: Perpendicular slopes multiply to −1, so the slope is −1/2.
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.