Algebra-1

Question Analysis
This question tests the student's ability to determine the range of a quadratic function when given the vertex and the direction it opens.

Key Concept Explanation
The range of a quadratic function depends on the vertex’s -coordinate and the sign of the coefficient . If , the parabola opens upward, and the range is all -values greater than or equal to the vertex’s -coordinate.

Step-by-step Solution
1. Identify the vertex coordinates:

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