MATH

posted by .

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 -

    A(-1,-2),P(x,y),B(9,3).

    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.

    P(7,2).

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. Algebra and Discrete Geometry

    For points X (1,3,5) and (2,-4,6) find: a) the coordinates of the point P that divides the segment XY (internally) in the ratio 3:2. b) the coordinates of the point R that divides the segment XY (externally) in the ratio -2:5.
  2. calculus

    let f be the function f(x) = x^3 + 3x^2 - x + 2 a. the tangent to the graph of f at the point P = (-2,8) intersects the graph of f again at the point Q. Find the coordinates of point Q. b. Find the coordinates of point R, the inflection …
  3. PHYSICS PLEASE HELP

    A particle travels counterclockwise around the origin at constant speed in a circular path that has a diameter of 2.50 m, going around twice per second. Point Q is on the path halfway between points P and R, which lie on the x axis …
  4. MATH

    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. 2. Solve. 4-x/x<1 My answer: x>2
  5. MATH

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

    FIND THE COORDINATES OF THE POINT ON THE Y-AXIS WHICH DIVIDES THE LINE SEGMENT FROM (0, -4)TO(0,20)INTERNALLY IN THE RATIO 5:7.
  7. Maths please help

    (a) Find the points which divide the line joining A(1,3) and B(-4,-1) internally in the ratios: (i) 1:2 (ii) 1:1 (iii) 3:1 (b) On the same x-y axes plot the point A(1,3) and B(-4,-1) and draw the line joining them. Add the three points …
  8. maths

    (a) Find the points which divide the line joining A(1,3) and B(-4,-1) internally in the ratios: (ii) 1:1 (iii) 3:1 (b) On the same x-y axes plot the point A(1,3) and B(-4,-1) and draw the line joining them. Add the three points which …
  9. geometry

    I have no clue to this. Please help. Line segment CD has endpoints with coordinates (1,2) and (9,6). What is the location for point E so that E divides CD into the ratio 3:1?
  10. Math,2D-Geometry

    Find the coordinates of the point which divides the line segment joining (2,4) and (6,8) in the ratio 1:3 internally and externally

More Similar Questions