Use the sliders a, b, and c to modify the quadratic equation. 1) What happens when a < 0, a = 0, or a>0? 2) How would you describe point A for each of the above values of a? 3) How does the shape of the curve change for each of the values of a? 4) What is the effect with when the value of c is changed? 5) How would you describe the relation between vertcally dashed blue and the red curve?