Question

in what ratio does the point (3,4) & (-1.-7) lie on y axis​

Answer 1

Step-by-step explanation:

Let

y -axis divides PQ in the ration k:1.

Then, the coordinates of the point of division are R(

k+1

3k−4

,

k+1

7k+5

)

Since, R lies on y -axis and x-coordinate of every point on y4 -axis is zero.

∴

k+1

3k−4

=0

⇒3k−4=0

⇒k=

3

4

Hence, the required ratio is

3

4

:1 i.e., 4: 3

∴R(

k+1

3k−4

,

k+1

7k+5

)=(0,

7

−13

)