First, notice that the graph is a parabolla, then, the function is a quadratic function.
This means that it has the following form:

from this, we can state the following:
1.- The domain of the function is the set of all real numbers, since it is a polynomial function
2;- The range of the function is the set of all nonnegative real numbers, since its a quadratic function.
3.- The vertex of the parabolla is located at the point (0,0), which is an intercept of the graph
4.- The graph is symmetric with respect to the y-axis