Bc. lle paint A has He co-ordinates (-3,2) and he pant B has the coordinates (7,k). The lino AB has Hhe equation 3x+Ey=i (D Show that k= 4 () Find the coardindes f the pat midpoint of AE (ID Find-the gradent af AR:

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A: As per guidelines we can elaborate and solve your query as answer below.

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Coordinate Geometry

Coordinate geometry, also known as analytic geometry or Cartesian geometry in classical mathematics, is a type of geometry that is studied using a coordinate system. Coordinate geometry is a branch of mathematics that describes the position of points on a plane using an ordered pair of numbers called coordinates.