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

The answer is a). 1:2

Explanation:

The slope of the line joining the 2 points will be m=

$\frac{8 + 2}{2 + 1} = \frac{10}{3}$

The line becomes

$y = \frac{10}{3} x + c$

Substituting (-1,-2), you get c=4/3

Apply the value of y (x=0) in the section formula and you get the ratio m:n=1:2