Question

Pis the point (-2,1) and Q is the point
(37)
The line with equation 24 + 3x + k=0 passer
through the point P. findk.
Q is the midpoint of the line PR. find
the
coordinate
of
R.​

Answer 1

Step-by-step explanation:

according to question ÷

when line passes from point p

24 + 3x + k = 0 ------> 1

where point P (-2 ,1)

and x = -2

putting x = -2 in eqn (1)

24 + 3(-2) + k =0

24 -6 +k = 0

k= -18

2.

when Q is mid point

so by section formula

x1 + x2 / 2 = 3

-2 + x2 = 6

x2 = 8

2....

y1 + y2 /2 = 7

1 + y2 = 14

y2 = 13

therefore required coordinates of

of

R (8 , 13)