Answer: 60°.
- A 30°
- B 45°
- C 60°
- D 90°
Correct answer: C. 60°
Explanation: Slope of y = √3 x is √3 = tan 60°. The line y = 0 (x-axis) has slope 0. Angle = 60°.
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.