KVPY2015MathematicsParabola
Suppose OABC is a rectangle in the xy -plane where o is the origin and A , B lie on the parabola y = x ² . Then C must lie on the curve.
Options
- Ay=x²+2
- By=2 x²+1
- Cy=-x²+2
- Dy=-2 x²+1
Correct answer
A. y=x²+2
Step-by-step solution
m_ O A m_ O B =-1t₁ t₂=-1t₁+t₂=hK= (t₁+t₂ )²-2 t₁ t₂K=h²+2 y=x²+2