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

  1.4 A (1, 0) B (-1, 4) C (9, 5)

2. Solve the following problems.
  2.4 Find the equation of the line, cut-off on the vertical axis a segment equal to 2, and runs parallel to the line 2y - x = 3

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