Move point A along the curve

Q1. [br]a) When y<0, state the corresponding x-values[br]b) When y>0, state the corresponding x-values[br][br]Q2. Generate a new quadratic with the same roots as the quadratic in Q1, but with a=-1.[br]a) State the equation of the new quadratic[br]b) When y<0, state the corresponding x-values[br]c) when y>0, state the corresponding x-values