Graph of Functions x^(2n)

Q. The graph of $\frac{x^2}{a^2}-\frac{y^2}{b^2}=1$ is symmetric about

1. x-axis
2. origin
3. both x-axis and y-axis
4. y-axis

Q. The graph of $\frac{x^2}{a^2}-\frac{y^2}{b^2}=1$ is symmetric about

1. x-axis
2. y-axis
3. origin
4. both x-axis and y-axis