To find the vertex of the quadratic function given in vertex form \( y = a(x - h)^2 + k \), we can identify the vertex directly from the equation.
The function provided is:
\[ y = -10(x + 15)^2 - 18 \]
We can rewrite it to match the vertex form:
\[ y = -10(x - (-15))^2 - 18 \]
From this, we can identify:
- \( h = -15 \)
- \( k = -18 \)
Thus, the vertex of the parabola is \( (h, k) = (-15, -18) \).
So, the vertex is:
\[ \boxed{(-15, -18)} \]
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