Question

Tolong bantu kak no 9..

Answer 1

PR : RQ  = 1 : 5
5 PR = RQ
5(r - p) = q - r
5r - 5p = q - r
5r + r = 5p + q
6r = 5p + q
r = 1/6 ( 5p + q)

Rx = 1/6 (5(-1) +11) = 1/6 (6) =1
Ry = 1/6 (5(1) + 7) = 1/6 (12) = 2

R ( 1, 2)