$\frac{x^2}{9} - \frac{y^2}{49} = 1$

This is a hyperbola centered at the origin with $a^2 = 9$ and $b^2 = 49$.

The $x$-intercepts occur when $y = 0$: $\frac{x^2}{9} = 1 \Rightarrow x = \pm 3$

Only $(3,0)$ and $(-3,0)$ are intercepts. The answer among the choices is $(3,0)$.