Quadrilateral WXYZ has vertices w(2.10), x(10,10), y(10,2), and z(2,2). Determine if quadrilateral is a rhombus.

a. No, quadrilateral WXYZ is not a rhombus.
b. Yes, quadrilateral WXYZ is a rhombus because the sides are perpendicular
c. Yes, quadrilateral WXYZ is a rhombus because the slopes of the diagonals are perpendicular.
d. There is not enough information to determine.

Luke started a weight-loss program. the first week, he lost x pounds. the second week, he lost pounds less than times the pounds he lost the first week. the third week, he lost 1 pound more than of the pounds he lost the first week. liam started a weight-loss program when luke did. the first week, he lost 1 pound less than times the pounds luke lost the first week. the second week, he lost 4 pounds less than times the pounds luke lost the first week. the third week, he lost pound more than times the pounds luke lost the first week.