Question no.8 please

Question no.8 please Find out the area enclosed by 21xl + 31yl 6. 6. If a line joining two points A (2,0) and B (3, I) is rotated about A in anticlockwise direct 7. degree then find the equation of the line in the new position. The point (4,1) undergoes the following transformation successively 8. Reflection about the line Translation through distance 2 units along the positive direction of x-axis. ii. Rotation through angle 45 degree about the origin in anticlockwise direction Reflection about x=O. iv. Find the final location of the point. Let be an integer such that the triangle with vertices (k,-3k), (5,k) and (•k,2) has area otrthocentre of this triangle. If PS is the median of the triangle with vertices Q (6,-1) and R (7,3), then find 10. passing through (1,-1) and parallel to PS. Find the x coordinate of the incentre of the triangle that thas the coordinates of the 11. (0,1), (1,1) and (1,0). A straight line L through the point (3,-2) is inclined at an angle 60 degree to the line 12. the X axis, then find the equation of L. The equations of the perpendicular bisectors of the sides AB and AC of a triangle A 13. respectively. If the point A is (1,-2), find the equation of the line BC. For a point P in the plane, Let dl (P) and d2 (P) be the distances of the point P from 14. respectively. Find the area of the region R consisting of all points P lying in the firs satisfying 2 dl(P) + d2(P) S 4 (5. A triangle has the lines y=rmx and as two of its sides, with ml and rt12 being bx2+2hx+a= O. If H(a,b) is the orthocentre of the triangle, show that the equation c