1. Given the vertices of the triangle ABC: A (x1, y1), B (x2, y2), C (x3, y3). Search:
  a) side of the equation AB
  b) the height of the equation CH
  c) The median equation AM
  d) the point of intersection of the median N AM and height CH
  e) The equation of the line passing through the top with parallel sides AB
  e) the distance from the point C to the line AB

  1.7 A (-4, 2) B (-6, 6) C (6, 2)

2. Solve the following problems.
  2.7 Write the equation of the line passing through the point A (3, 1) is perpendicular to the line BC, if B (2, 5), C (1, 0).

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