Algebra-1

Question Analysis
This question tests the understanding of the range of a quadratic function in vertex form. The range depends on the vertex’s -coordinate and the direction the parabola opens.

Key Concept Explanation
The range of a quadratic function is determined by the vertex's -coordinate and the sign of . If a > 0 (parabola opens upward), the vertex is the minimum point, so the range includes all -values greater than or equal to , expressed as .

Step-by-step Solution
1. Identify the given quadratic function:

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