Question

the line segment joining points a(-1,-2) b(2,8) is divided by y-axis in the ratio a)2:1 b)1:2 c)1:3 d)3:1​

Answer 1

Answer:

let the required ratio be k:1

Then, the abscissa of the point lying on the y-axis is 0

By Section Formula,

∴

k+1

8k−12

=0⇒8k−12=0⇒8k=12⇒k=

2

3

the required ratio

2

3

:1=3:2

Answer 2

Answer:

make as brainlist answer

Explanation:

let the required ratio be k:1

Then, the abscissa of the point lying on the y-axis is 0

By Section Formula,

∴k+18k−12=0⇒8k−12=0⇒8k=12⇒k=23

the required ratio 23:1=3:2