lim, 5-4x² 5x² – 3x² + 6x - 4 [3 marks] 2. Determine the point/s of discontinuity for the following functions. x'+5x+6 a) f(x) = - [3 marks) x+3 b) f(x) = x?+5x+6 2x?+5x-3 [4 marks] 3. If f(x) =