Use the definition of the derivative to find the following derivatives of the function f (x) = 4x2 + 7x - 9: - (a.) f' (x) - (b.) f" (x) - (c.) f""(x) Use 1 f'(a) = lim f(ath) -fa h->0 h to find the following derivative of f (x): - (d.) f' (2)Find equations for two lines that are both tangent to the curve y = x3 3X2 + 3X 7 and parallel to the line 3X y = 11. (Enter your answers as a comma-separated list of equations.) y=3x7,y=3x8 X Need Help