1. Derivative of y = 14 is: a) 0 b) 1 2. Derivative of f(x) = -9x +4 is: a) 9 b) -9 3. Derivative of g(x)=2x + x²-7x²+3 a) 6x² + x² - 7x True or False: 12 Marks] c) 14 d) Undefined c) 4 d) 0 b) 12