Use the definition of a derivative to find the derivative of f(a ) = 3xc - 3. O A. 3x2 - 3x O B. 3x - 3 O C. 3 O D. -3 O E. f(a) has no derivative.Use the definition of a derivative to find the derivative of f(a ) = 2x2. O A. 4x3 O B. 4x2 O C. 4X O D. 4 O E. f(a) has no derivative.Use the alternate definition of a derivative to find the derivative of f(a ) = x - 5 at x = 7. O A. 7 O B. 5 O C. 2 O D. 1 O E. f(a) has no derivative.Find the slope, m, of the line tangent to the function f(a:) = 2:62 32: + 1 at x = G. O A. 11123 0 B. mzl 3x -9ifx >9 Over what interval(s) is the function f (a) differentiable? 15 if x 0 Is f (a?) = {CD:( 2:) if :c _ D differentiable over the interval (1.9) ? .1: