Mashaal Masha
$$f(x)=x^{2}-18x-360$$

If the given function $f$ is graphed in the $xy$-plane, where $y=f(x)$, what is an $x$-intercept of the graph?
Difficulty: Medium
A: 

$(-12,0)$

B: 

$(-30,0)$

C: 

\((-360,0)\)

D: 

$(12,0)$

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