In Problem, (a) find the intercepts of the graph of each equation, (b) test each equ...

In Problem, (a) find the intercepts of the graph of each equation, (b) test each equation for symmetry with respect to the x-axis, the y-axis, and the origin, and (c) graph each equation by plotting points. Be sure to label the intercepts on the graph and use any symmetry to assist in drawing the graph.