Question

The vertices of quadrilateral ABCD are A(1,1), B(1,5), C(5,5), and D(7,1). You want to transform ABCD into a parallelogram by only moving point B. A parallelogram is four-sided figure with both pairs of opposite sides parallel. What should be the new x-coordinate of point B?

Answer 1

The new coordinate of point B would have to be (-1,5). This can be seen when graphing the coordinates you gave, and by substituting 1 for -1 in the coordinates of point B into that same graph