Algebra-2

Question Analysis
This question tests the student's ability to find the x-coordinate of the vertex of a quadratic function in standard form. The formula for the x-coordinate of the vertex, given by the axis of symmetry, is .

Key Concept Explanation
The vertex of a parabola in standard form can be found using the formula for the axis of symmetry, which is . This formula helps in locating the minimum or maximum point of the parabola.

Step-by-step Solution
1. Identify the coefficients: