Homework Progress 24/40 Marks A sketch of y = ax2 + bx + c is shown. The minimum point is (1,-3) 53% Select the correct answer in each of the following. a) The value of a is (1,-3) A A: negative b) The value of c is A: negative B: zero C: positive B: zero C: positive c) The solutions of ax² + bx + c = 0 are A: both negative B: both positive C: one negative and one positive B C Only 1 attempt allowed. b) 으 A B C Only 1 attempt allowed. A B C B C Only 1 attempt allowed. Submit Answer​