Algebra-1

Question Analysis
This question tests the student's understanding of the vertex of a parabola and its relationship with the extremum value. The problem provides the coordinates of the vertex and asks for the ordinate (y-coordinate) of the vertex.

Key Concept Explanation
The vertex of a parabola is the highest or lowest point on the graph. For a parabola that opens upwards, the vertex is the minimum point, and the y-coordinate of the vertex is the minimum value of the function.

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