DHS - 3.2
№ 1.3. The vertices of ∆ABC are given: A (1; 7); B (–3; –1); C (11; –3). Find: a) Equation side AB; b) Equation of height CH; c) the median AM equation; d) the intersection point N of the median M and the height of the SN; e) the equation of a straight line passing through the vertex C and parallel to the side AB; e) distance from point C to straight line AB.
№2.3. Given two vertices of the triangle ABC: A (–4; 4); B (4; –12) and the point M (4; 2) the intersection of its heights. Find Vertex C.