The image shows a graph and asks for the equation of a quadratic function.

Let's analyze the graph:

1. Identify the vertex and the intercepts:

   • The vertex is the highest or lowest point of the parabola.
   • The y-intercept is the point where the graph crosses the y-axis.
   • The x-intercepts (if any) are the points where the graph crosses the x-axis.

2. Form of the quadratic equation: A quadratic function can generally be expressed in the form:
   $y = ax^2 + bx + c$ or in the vertex form:
   $y = a(x - h)^2 + k$ where $(h, k)$ is the vertex.

Please confirm the vertex and intercept points from the graph or provide more details so I can help you further determine the correct equation.