.Find the slope of each line which contains each pair of points listed below.
(a) (0,0) and (8,4) (b) (10,5) and (6,78) (c) (2,-2) and (4,2)
(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)
- 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.
Write each of the following sets (i) in set builder form (ii) in listing its elements.
(1) The set N of natural numbers.
(2) 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. - Choose a suitable description (a) of (b) or (c) in set builder form for the following sets.
(1) E ={ 2, 4, 6, 8}