Question
Find the equation of the parabola that satisfying the following condition:
Vertex at (0,0), focus on the positive x-axis and length of latus rectum 
Solution
The vertex is (0, 0) and the focus on positive x-axis is S (a, 0), a>0
∴ Equation of parabola is 
...(i)
Latus rectum = 4a = 
(∵ a > 0)
Hence, from (i), the equation of parabola is: 
