Question

Find the slope of the line which makes angle of 45° with the positive direction of the Y-axis measured anticlockwise

Answer 1

Since the line makes an angle of 45° with the positive direction of the Y-axis in the anticlockwise direction,

Inclination of the line (θ) = (90° + 45°)

∴ Slope of the line = tan(90° + 45°)

= −cot 45°

= −1