1. What must be done to change a positive quadratic function into a negative quadratic function? [br]2. What are the zeros of the function when a = 1 b = -3 c = -4?[br]3. Create your own equation and state the zeros.[br]4. What effect on does changing 'a' have on the parabola? [br]5. What effect on does changing 'b' have on the parabola?[br]6. What effect on does changing 'c' have on the parabola?