A. finding square roots b. graphing c. using the quadratic formula d. factoring e. completing the square

Personally I would use the quadratic formula. Finding the square root would be difficult, graphing would most likely not be completely accurate without a graphing calculator, factoring would be inefficient due to the addition, and the b value must be known to complete the square.

Answercounterclockwise rotation about the origin by 180 degrees followed by reflection about the y-axisexplanationthe given figure has verticesrecall that for counterclockwise rotation about the origin, when we rotate figure pqrs counterclockwise through an angle of 180° about the origin, the coordinates will becomenext, we reflect in the y-axis by negating the x-coordinates of the resulting figure to obtain,therefore the correct answer is c