Mathematics · Application of Derivatives
Let a be a real number such that the function f(x) = ax2 + 6x - 15, x ∈ R is increasing in -∞4) and decreasing in (34, ∞). Then the function g(x) = ax2 - 6x + 15, x ∈ R has a:
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- 1local minimum at x = 34
- 2local maximum at x = 34
- 3local minimum at x = -34
- 4local maximum at x = -34✓
Correct answer
local maximum at x = -34
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