For the graph of the equation $y=x^2-4$, draw a sketch of the graph on a piece of paper. Then answer the following questions:

The $x$-intercept(s) is(are):
Note: If there is more than one answer enter them separated by commas (i.e.: (1,2),(3,4)). If there are none, enter none .

The $y$-intercept(s) is (are):
Note: If there is more than one answer enter them separated by commas (i.e.: (1,2),(3,4)). If there are none, enter none .

Is the graph symmetric with respect to the $x$-axis? Input yes or no here :
Is the graph symmetric with respect to the $y$-axis? Input yes or no here :
Is the graph symmetric with respect to the origin? Input yes or no here :