SOLUTION: find the coordinates of the point which divides the line segment from (-1,4) to (2,-3) in to ratio of 3 to 4 (two solutions)

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Question 1008389: find the coordinates of the point which divides the line segment from (-1,4) to (2,-3) in to ratio of 3 to 4 (two solutions)
Found 3 solutions by mananth, ikleyn, n2:
Answer by mananth(16949) About Me  (Show Source):
You can put this solution on YOUR website!
Let the points be (x1,y1) and (x2,y2)


Here
x1= -1
x2= 2
y1= 4
= -3
ratio of division
m= 3
n= 4

The the coordinates the point which divides the two points in the ration of m:n is given by

x= %28mx1%2Bnx2%29%2F%28m%2Bn%29
Y %28my2%2Bny1%29%2F%28m%2Bn%29


plug thevalues

x=( 3 * 2 + 4 * 2 )( 3 + 4 )
x=( 6 + 8 )( 7 )
x=( 14 / 7
x= 2


y=( 3 * -3 + 4 * 4 )( 3 + 4 )
y=( -9 + 16 )( 7 )
y=( 7 / 7
y=( 1

The co ordinates are x= 2 ,y= 1

Now plug m=4 and n=3 to get other solution
m.ananth@hotmail.ca


Answer by ikleyn(53742) About Me  (Show Source):
You can put this solution on YOUR website!
.
find the coordinates of the point which divides the line segment from (-1,4) to (2,-3) in to ratio of 3 to 4
(two solutions)
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~


        Calculations and the answer in the post by @mananth are totally and fatally incorrect.
        His formulas are conceptually and methodically incorrect;
        his calculations are partly incorrect and partly incomplete.

        Below is my correct solution.


The points are  A = (x1,y1) = (-1,4) and B = (x2,y2) = (2,-3).


Ratio of division is  m:n = 3:4.



If to interpret the ratio 3:4 as starting from A to B,
then the coordinates of the point which divides the given segment are


    x = %28m%2Ax2%2Bn%2Ax1%29%2F%28m%2Bn%29 = %283%2A2%2B4%2A%28-1%29%29%2F%283%2B4%29 = 2%2F7,

    y = %28m%2Ay2%2Bn%2Ay1%29%2F%28m%2Bn%29 = %283%2A%28-3%29%2B4%2A4%29%2F%283%2B4%29 = 7%2F7 = 1,



If to interpret the ratio 3:4 as starting from B to A,
then the coordinates of the point which divides the given segment are

    x = %28m%2Ax1+%2B+n%2Ax2%29%2F%28m%2Bn%29 = %283%2A%28-1%29%2B4%2A2%29%2F%283%2B4%29 = 5%2F7,

    y = %28m%2Ay1+%2B+n%2Ay2%29%2F%28m%2Bn%29 = %283%2A4+++%2B4%2A%28-3%29%29%2F%283%2B4%29 = 0.


ANSWER.  If to count the ratio 3:4 from A to B, then the division point is  (2%2F7,1).

         If to count the ratio 3:4 from B to A, then the division point is  (5%2F7,0).

Solved correctly.



Answer by n2(78) About Me  (Show Source):
You can put this solution on YOUR website!
.
find the coordinates of the point which divides the line segment from (-1,4) to (2,-3) in to ratio of 3 to 4
(two solutions)
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~


The points are  A = (x1,y1) = (-1,4) and B = (x2,y2) = (2,-3).


Ratio of division is  m:n = 3:4.



If to interpret the ratio 3:4 as starting from A to B,
then the coordinates of the point which divides the given segment are


    x = %28m%2Ax2%2Bn%2Ax1%29%2F%28m%2Bn%29 = %283%2A2%2B4%2A%28-1%29%29%2F%283%2B4%29 = 2%2F7,

    y = %28m%2Ay2%2Bn%2Ay1%29%2F%28m%2Bn%29 = %283%2A%28-3%29%2B4%2A4%29%2F%283%2B4%29 = 7%2F7 = 1,



If to interpret the ratio 3:4 as starting from B to A,
then the coordinates of the point which divides the given segment are

    x = %28m%2Ax1+%2B+n%2Ax2%29%2F%28m%2Bn%29 = %283%2A%28-1%29%2B4%2A2%29%2F%283%2B4%29 = 5%2F7,

    y = %28m%2Ay1+%2B+n%2Ay2%29%2F%28m%2Bn%29 = %283%2A4+++%2B4%2A%28-3%29%29%2F%283%2B4%29 = 0.


ANSWER.  If to count the ratio 3:4 from A to B, then the division point is  (2%2F7,1).

         If to count the ratio 3:4 from B to A, then the division point is  (5%2F7,0).

Solved.