Answer
See graph and explanations.
Work Step by Step
Step 1. Graph the equation as shown in the figure; it appears as two straight lines.
Step 2. In general, equation $\frac{x^2}{a^2}-\frac{y^2}{b^2}=0$ can be rewritten as $\frac{y^2}{b^2}=\frac{x^2}{a^2}$, which gives $y=\pm\frac{b}{a}x$ representing two straight lines intersecting at $(0,0)$