Find the slope, inclination angle and intercept on the Y-axis of the following line 1.2x + y + 3 = 0.2.x5-y4 = 0.3.x-2y = 0.4.x = y

Find the slope, inclination angle and intercept on the Y-axis of the following line 1.2x + y + 3 = 0.2.x5-y4 = 0.3.x-2y = 0.4.x = y

1、y=-2x-3
Slope k = - 2
Tilt angle = arctan (- 2) = - 63.4 degree
Intercept on y-axis
2、y=1.25x
k=1.25
a=arctan1.25=51.34°
Intercept = 0
3、y=x/2
k=1/2
a=arctan1/2=26.57°
Intercept = 0
4、y=x
k=1
a=arctan1=45°
Intercept = 0