Question

8.
If the point P (k, 0) divides the line segment joining the points A(2,-2) and
B(-7, 4) in the ratio 1:2, then the value of k is
(a) 1
(6) 2
(c) 2
(d) -1​

Answer 1

Answer:

–1

Step-by-step explanation:

x=m1x2+m2x1/m1+m2

x=–1

Answer 2

Answer:

(d)-1

Step-by-step explanation:,

using section formula we get,

$(x,y) =(m_{1} *x_{2}+m_{2} *x_{1} /m_{1} +m_{2} , m_{1} *y_{2}+ m_{2}*y_{1} /m_{1} +m_{2} )$

so since y is given we will apply the equation for x only

so for k(x) we get ,

K= 1*-7+2*2/ 1+2

K= -7+4/3

K=-3/3

K=-1