Plz help!!!!!!!!!!!!

Answer: b) x = -3, x = 3
Step-by-step explanation:
[tex]g(x) = \dfrac{x-4}{x^2-9}[/tex]
The vertical asymptotes are the restrictions on x, which can be found by finding the x-values that make the denominator equal to zero.
x² - 9 = 0
x² = 9
x = ± 3