To prove that quadrilateral JKLM is a parallelogram,
given the coordinates of its
vertices, Sue decided to
show the diagonals bisect
each other. To do so, which
calculation must Sue
perform?

Choose the number sentence that shows the identity property of addition. a. 122 = 61 + 61 b. 62 = 1 + 61 c. 61 = 0 + 61

Circle d circumscribes abc and abe. which statements about the triangles are true? statement i: the perpendicular bisectors of abc intersect at the same point as those of abe. statement ii: the distance from c to d is the same as the distance from d to e. statement iii: bisects cde. statement iv: the angle bisectors of abc intersect at the same point as those of abe. a. i only b. i and ii c. ii and iv d. i and iii e. iii and iv

3x + 4y = 5 x- 3y = -7 solve by substitution