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I don't understand this,so can you please explain more clearly. Where did you get the 1/5?

1.The point P divides the interval joining A(-1,-2) to B(9,3) internally in the ratio 4:1. Find the coordinates of P.

  • MATH - ,


    x-(-1) = 4(9-x)
    x+1 = 36-4x
    5x = 35
    X = 7.
    y-(-2) = 4(3-y)
    y+2 = 12-4y
    5y = 10
    Y = 2.


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