Find the equation of a line whose :

y-intercept = -1 and inclination = 45°.

Find the equation of a line which passes through (5, 4) and makes an angle of 60° with the positive direction of the x-axis.

Find the equation of a line passing through :

(i) (0, 1) and (1, 2)

(ii) (-1, -4) and (3, 0)