Question

Q.NO. 7 The line segment joining the points (-3, -4), (1, -2) is divided by y-axis in the ratio​

Answer 1

Answer:

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Step-by-step explanation:

Correct option is

B

3 : 1

Using the section formula, if a

point (x,y) divides the line joining the points (x1,y1) and (x2,y2) in the ratio m:n, then (x,y)=(m+nmx2+nx1,m+nmy2+ny1)

Substituting (x1,y1)=(−3,−4) and (x2,y2)=(1,−2)  in the section formula, we get the point (m+nm(1)+n(−3),m+nm(−2)+n(−4))=(m+nm−3n,m+n−2m−4n)

As the point lies on y - axis, x -coordinate =0.

=>m+nm−3n=0

=>m=3n  or m: