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lease answer the questions below

Question 3 (1 point) If f (x) = x4 + 2x3 then O al f" ( x) = 4x3+ 6x2 Ob f" ( x ) = 4x4 + x2 Och f" (x) =x3+12x O d) f" ( x ) = 12x3 + x Oe) f"(x) = 12x2+12x Of) None of the aboveQuestion 6 (1 point) Suppose the size of a cell culture at time x is given by f(x)=x . The equation of the tangent line to the graph of f(x) at (1, f(1)) is a) y = 7x-6 O b) y = 4x-3 Och y = 7x-7 O d) y = 5x-4 O e) None of the above