Given 12345678910-1-2-3-4-5-6-7-8-9-1012345678910-1-2-3-4-5-6-7-8-9-10
What is the vertex?  
What are two critical points on each side of the vertex?  
Write the quadratic equation that matches the given graph.
Use vertex form (y=a(x-h)^2+k)  
What is the y-intercept?