Below is the function f(x). 6 16 4 34-4 2 1 -7 -6 -5 -4 -3 -2 -1 -2 Nast w --4- -5. -6- 12 45 Over which interval of values is f'> 0? O (4,00) O [4,00) O(-∞0,4) O(-∞0,4] 0 (-∞0,00] Over which interval of a values is f'<0? ○ (4,00) O [4,00) O(-∞0,4) 0 (-∞0,4] O(-∞0,00] concave down (f"< 0) d Over the interval (-∞, ∞), this function is O concave up (f"> 0)

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