Standard equationEasyQuestion 390001
Question
The standard equation of a parabola opening rightward is:
- Ay² = 4ax (a > 0)Correct
- Bx² = 4ay
- Cy² = −4ax
- Dx²/a² + y²/b² = 1
Correct answer
y² = 4ax (a > 0)
Explanation
Standard parabolas: y² = 4ax (opens right), y² = −4ax (opens left), x² = 4ay (opens up), x² = −4ay (opens down). Focus at (a, 0) for y² = 4ax.