PART IV QUESTION: Answe all parts of the following question. The conved answer will receive 10 credo Clearly indicate the necessary steps and explain you reasoning For all questions in this part, a come
umenical answer with no work shown will receive only 1 credit.
13 In the diagram below, AABC has vertices at 11-7,8), B(2.0), and CC-5-8)
(a) Show that pomt 4 equuntant from the
endpomts of segment BC pouts]
(b) Find the coordinates of the midpoint of BC
Label thuis point on your diagram as M
[2 points)
Clu)
(c) Show that AM is perpendicular to BC ponts]