Single Answer MCQ
Q-00052091
If a line has a slope of -3, what is its angle with the positive x-axis?
1
180 degrees
2
60 degrees
3
150 degrees
4
30 degrees
Answer and Solution
Answer
C. 150 degrees
Solution:
Angle = tan^(-1)(-3) = 150 degrees (the angle is measured from the positive x-axis in the second quadrant).
Watch Video Solution