2. Check the continuity of the following functions. (a) Y= 3X2-7X- 6 in closed interval [-10, 50] (6 points) X2 8X+15 1) Continuous . 2) Discontinuous at 3.0 3) Discontinuous at. -5.0 4) Discontinuous at -3.0 (b) 2-X if X 5 1) Continuous. 2) Discontinuous at x = 0.0 3) Discontinuous at x = 5.0 4) Discontinuous at x = 2.5