Equation of parabola : y^{2} = 12x

On comparing with : y^{2} = 4ax , 4a = 12 , a = 3

Focus : S = (a,0) = (3,0)

Equation of directrix :

x + a = 0

**∴** x + 3 = 0

Length of latus recturm = 4a = 12 units

Ends of latus rectum : L = (a , 2a) = (3,6)

L’ = (a,-2a) = (3,-6)