Saturday

December 20, 2014

December 20, 2014

Posted by **Anonymous** on Monday, July 1, 2013 at 1:23am.

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 -
**Kuai**, Monday, July 1, 2013 at 2:13am(4*9+ 1*-2)/(4+1), (4*3 + 1*-2)/(4+1)

((36-2)/5, (12-2)/5))

(34/5, 10/5)

(34/5, 2) or (6.4, 2)

- MATH -
**Steve**, Monday, July 1, 2013 at 3:32ameh?

since the line is divided into ratio 4:1, you can consider it divided into fifths. P is 4/5 of the way along the line. That means its x-coordinate is 4/5 of the way from -1 to 9, and its y-coordinate is 4/5 of the way from -2 to 3.

The distance from -1 to 9 is 9-(-1) = 10.

4/5 of 10 is 8

Similarly for y, 4/5 of the way from -2 to 3 is 4.

So starting at A, add 8 to x and 4 to y to get

P = (7,2)

**Answer this Question**

**Related Questions**

MATH - I don't understand this,so can you please explain more clearly. Where did...

MATH - 1.The point P divides the interval joining A(-1,-2) to B(9,3) internally ...

Algebra and Discrete Geometry - For points X (1,3,5) and (2,-4,6) find: a) the ...

math - Find the ratios in which the spheres x^2+y^2+z^2=24 divides the line ...

PHYSICS PLEASE HELP - A particle travels counterclockwise around the origin at ...

Analytic Geometry - Please help. I've been trying to solve these for more than ...

Social Studies 9 - Explain how television and other media can contribute to ...

maths --plse help me.. - Let a,b,c be positive integers such that a divides b^2...

urgent -plsee - Let a,b,c be positive integers such that a divides b^2 , b ...

maths --plse help me.. - Let a,b,c be positive integers such that a divides b^2...