Quadrilateral abcd has opposite sides that are parallel and side ab congruent to side dc. what classification can be given to abcd? a. parallelogram. b. rectangle. c. rhombus. d. square.

I think the correct answer from the choices listed above is option B. Quadrilateral ABCD must be a rectangle because it is characterized by having opposite sides that are parallel and side AB congruent to side DC which are characteristics of a rectangle.

Do you need with the x value for the minimum? its always between the two intercepts for a parabola