Given equation : y2 = 12x
Comparing given equation with parabola having equation,
y2 = 4ax
4a = 12
• a = 3
Focus :
F(a,0) = F(3,0)
Vertex :
A(0,0) = A(0,0)
Equation of the directrix : x + a = 0
• x + 3 = 0
• x = -3
Lenth of latusrectum : 4a = 4.(3) = 12