Question

The cordinate of pt P on a number line is -17 find the coordinate of pt Q which is 8units away from it

Answer 1

Step-by-step explanation:

10th

Maths

Coordinate Geometry

Section Formula

Find the coordinates of poi...

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Asked on December 26, 2019 by

Shelly Lal

Find the coordinates of point P which divides the line joining A(4,−5) and B(6,3) in the ratio 2:5.

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ANSWER

Let the coordinates of P be (x, y). Given m:n=2:5

(x

1

,y

1

)=(4,−5) and (x

2

,y

2

)=(6,3)

by section formula,

x=

m+n

mx

2

+nx

1

=

2+5

2(6)+5(4)

=

7

12+20

=

7

32

y=

m+n

my

2

+my

1

=

2+(5)

2(3)+5(−5)

=

7

6−25

=

7

−19

∴ Coordinates of P=(

7

32

,

7

−19

)