Question 1118086
Quadrilateral ABCD is a rectangle. 
If AG = –7j + 7 and DG = 5j + 43, what is BD? 
:
Since it is a rectangle
 5j + 43 = -7j + 7
solve for j
5j + 7j = 7 - 43
12j = -36
j = -36/12
j = -3
:
what is BD? 
BD = 2(5j + 43)
BD = 10j + 86
Replace j with -3
BD = 10(-3) + 86
BD = -30 + 86
BD = 56