Mathematics · JEE | APPLICATION OF DERIVATIVES

Find the intervals in which the function \( f(x) = 10 - 6x - 2x^2 \) is strictly increasing.

1. A
   \( (0, \frac{3}{2}) \) / \( (0, \frac{3}{2}) \)
2. B
   \( (-\frac{3}{2}, \infty) \) / \( (-\frac{3}{2}, \infty) \)
3. C
   \( (-\infty, -\frac{3}{2}) \) / \( (-\infty, -\frac{3}{2}) \)
4. D
   \( (-\frac{3}{2}, 0) \) / \( (-\frac{3}{2}, 0) \)