Algebra-2

Question Analysis
This question tests the student's understanding of how the coefficient in the standard form of a quadratic function determines the direction in which the parabola opens. The sign of indicates whether the parabola opens upward or downward.

Key Concept Explanation
If , the parabola opens upward, and if , the parabola opens downward. In this case, , so the parabola opens downward.

Step-by-step Solution
1. Identify the coefficient

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