Find the equation of the line through the point ( 2 , -1 ) and perpendicular to 4x -3y= 5. (5 marks ) Draw the graph of the relation R = {(-4,-3),(-3,-2),(-2,-1),(-1,0),(0,1),(1,2),(2,3),(3,4)}.

If a:b=3:8 and b:c=4:5, then a:c=………….. A. 5:11 B. 3:8 C. 3:11 D. 3:10 E. 5:8 If a:b=3:5 and b:c=3:5, then a:b:c=……… A. 2:3:5 B.3:5:7 C.6:10:15 D. 9:15:25 E.9:20:27 If a:b = 5:3 , then 3a+ 4b: 4a+3b is