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If A is (1,5) and B is (-1,7) then find the sum of abscissa of A and coordinate of B. If you answer you will be definitely marked as the brainliest and thanked. this is urgent so please help anyone. You've 20 points for this question!

Answer»

Using the SECTION FORMULA, if a POINT (x,y) divides the LINE joining thepoints (x 1 ,y 1 ) and (x 2 ,y 2 ) internallyin the ratio m:N, then (x,y)=( m+nmx 2 +nx 1 , m+nmy 2 +ny 1 )Substituting (x 1 ,y 1 )=(4,−3) and (x 2 ,y 2 )=(−1,7) and m=3,n=2 in the section formula, we getthe abscissa of the point ( 3+23(−1)+2(4) )=1



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