Question

If Q is the midpoint of PR,find the coordinates of R if P(11,-2)and q(4,3)

Answer 1

Step-by-step explanation:

let coordinates of mid points be (m,n)

m = 11+4/2 = 15/2

n = -2+3/2 = 1/2

midpoints = (15/2 , 1/2)

Answer 2

Step-by-step explanation:

Q is the midpoint of

AB

⇒

AQ

+

QB

=

AB

⇒

AB

=2

AQ

=2

QB

.........(1)

P is the midpoint of

QB

⇒

QP

+

PB

=

QB

⇒

QB

=2

QP

=2

PB

.........(2)

From (1) and (2) we have

AB

=2

QB

from (1)

AB

=2(2

PB

) from (2)

⇒

AB

=4

PB

∴

PB

=

4

1

AB