Algebra-2

Question Analysis
This question tests the student's ability to find the y-coordinate of the vertex of a quadratic function given in intercept/factored form.

Key Concept Explanation
The y-coordinate of the vertex of a quadratic function in intercept/factored form is found by substituting the x-coordinate of the vertex (which is the same as the axis of symmetry) back into the function.

Step-by-step Solution
1. Identify the x-intercepts: From , we have and .
2. Find the x-coordinate of the vertex:

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