<PRE><B>Question 198200</B>
Bisector  leads  to  10x -14 = (1/2) (9x+38)
.
20x -28 = 9x +38
.
11x = 66
.
x=6
.
Subst  in  8x  = 48  =  angle  xzy
.
for  xw  to  be  altitude  angle  zwx  must  =  90 degrees,
.
triangle  xzw,  has  angles,  xzw =48,  and  zxw = 46,  therefore  zwx = 86,  and  not  90
.
therefore  xw  is  NOT  an  altitude</PRE>