Working through Gelfands Functions and Graphs but I'm stuck on a question. The question involves an image of a graph of $x^2 + px + q$ from the graph alone you need to find $p$ and $q$.
As you can see from the image below the vertex of the parabola is not known. I can find equations of graphs of parabolas with known vertex co-ordinates but is there any hints to find the equation of this graph?
