Question Analysis
The main focus is to determine the parabola’s orientation by analyzing the positions of the focus and directrix.
Key Concept Explanation
A parabola's orientation is determined by the relative positions of its focus and directrix:
Vertical parabola: Focus and directrix are aligned vertically (focus is above/below the horizontal directrix).
Horizontal parabola: Focus and directrix are aligned horizontally (focus is left/right of the vertical directrix).
Step-by-Step Solution
1. Analyze the focus and directrix coordinates:
Focus: (a point with an -coordinate of and -coordinate of ).
Directrix: (a vertical line where all points have an -coordinate of ).
2. Determine alignment:
The focus lies to the left of the directrix