Question: Which one is right (multiple choice) 9 For which value of x is the derivative of f (x) = x2-1 negative? a. -1 x-3 C.
Which one is right (multiple choice)

9 For which value of x is the derivative of f (x) = x2-1 negative? a. -1 x-3 C. 0 b. 1 d. 6 10 For which value of x on the graph of f (x) = (x + 1) (x + 2) such that the tangent is parallel to the line 3x - y - 5 = 0 a. 0 C. -1 b. 1 d. 3
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