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) The set J of all positive integers.
(3) The set P of all prime numbers.
(4) The set A of all positive integers that lie between 1 and 13.
(5) The set B of real numbers which satisfy the equation 3x2 + 5x – 2 = 0.

1. Choose a suitable description (a) of (b) or (c) in set builder form for the following sets.
   (1) E ={ 2, 4, 6, 8}
   (a) E = { x/ x is an even integer less than 10 }
   (b) E = { x/ x is an even positive integer less than 10 }
   (d) (0,3) and (-2,3) (e) (-2,0) and (0,6) (f) (15,6) and (-2,23)
   (g) (-5,7) and (3,8) (h) (63,49) and (-7,9) (i) (5/2 ,4/3 ) and (-13/2 ,16/3 )
   (j) (2a,3b) and (-a,b) (k) (5√2 ,6√3 ) and (√8, √12) (l) (0,n) and (n,0)
   Find the slope of the lines passing through the points (0,0) and (8,4). (3 marks)
2. The vertices of a triangle ate the points A(-2,3), B( 5,-4) and C(1,8). Find the slope of each
   side and also the slope of median.
3. The vertices of parallelogram are the points R(1,4), S(3,2), T(4,6), V(2,8). Find the slope of
   each side.
4. Determine the slope of each side of the quadrilateral whose vertices are A(5,6), B(13,6),
   C(11,2). Can you tell what kind of quadrilateral it is?