WeBWorK Standalone Renderer

For the graph of the equation $x^3 y^2 +x^4 y^4 =4$ , answer the following questions:

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

You can earn partial credit on this problem.