Equations Part-2
06) The centroid of the triangle ABC is the point (2, 3). A and B are the points (5, 6) and (-1, 4) respectively The coordinates of c are. (a) (1, -2) (b) (2, -1) (c) (1, 2) (d) (2, 3)
07) If X3-6x2 + 11x - 6 = 0 then find the value of (3x - 4). (a) (1, 2 , 3) (b) (-1, 2 , 5) (c) (-1, 3 , 5) (d) (2, 3 , 5)
08) A straight line of x =15 is : (a) Parallel to y axis (b) Parallel to x axis (c) A diagonal line (d) Passes through origin
09) The equation of the straight line through the point of intersection of x + 2y -5 = 0 and x -3y -7 = 0 and passing through the point (1, 0) is: (a) x + 12y = 1 (b) x - 12y = 1 (c) x - 12y = 11
10) If roots of equation x2 + x + r = 0 are 'α' and 'β' and α3+ β3 = -6, Find the value 'r' ? (a) -5 3 (b) 7 3 (c) -4 3 (d) 1
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