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Find the ratio in which the line segment joining A=(3, -4) and B=(-4, 7) is divided by Y -axis |
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Answer» The points are 4,6 and -7,-1THEN by using section formula =[ m1*x2 + m2*x1]/[m1 +m2] ,[ m1*y2 +m2*y1]/[m1+m2].then take m1 as K and m2 as 1 that make ratio of k:1then, by using section formula=[k*-7+1*4/k+1] ,[k*-1+1*6/k+1][-7k+4/k+1] ,[ -k +6/k+1]then, on X axis y is 0then,[ -k+6/k+1] =0 then, take k+1 on right side = -k+6 = 0*k+1= -k +6 = 0then take 6 on right side = -k = -6then both negative SIGN are cancelled = k = 6then the ratio is k:1 = 6:1 |
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