Question

Angles made by the line with the positive direction of X-axis are given. Find the slope of these lines.
(1) 45°
(2) 60°
(3) 90°

Answer 1

If a line makes an angle A with

positive direction of x axis then it's

slope is m = tanA

1. angle of inclination = 45 degrees

Slope m = tan45 = 1

2. Angle of inclination = 60 degrees

Slope m = tan60 = sqrt(3) = 1.732

3. Angle of inclination = 90 degrees

Slope m = tan 90 = undefined

I hope this answer helps you