Question

Let A = (−4,0), B = (0,6), and C = (6,0).
(a) Find equations for the three lines that contain the altitudes of triangle ABC.
(b) Show that the three altitudes are concurrent, by finding coordinates for their common point. The point of concurrence is called the orthocenter of triangle ABC.

Answer 1

wow thats tuff

Answer 2

ABCDEFG

Answer 3

@zepdrix @mathmate @welshfella

Answer 4

rough diagram