The illustration below shows the graph of y as a function of x. This is the graph of a (linear/nonlinear) function.
The y-intercept of the graph is the function value y=___.
The smallest positive x-intercept of the graph is located at x=___.
The greatest value of y is y=___.
For x between x= -pi and x=-pi/2 , the function value y (greater than, less than, equal to) 0.