# Let us calculate in what ratio is the line segment joining the point s (7, 3) and (–9, 6) divided by the y – axis.

Since it is divided by the y – axis, the coordinate of that point will be –(0, y).

We know, By section formula

(Where, m and n are the ratios (internally), (x1, y1) and (x2, y2) are the coordinates of the line segment, and (0, y) are coordinates of dividing point .)

Now taking in consideration the equation for x one only –

m + n = – 9m + 7n

10m = 6n

(1, 3) divides the line segment joining the point s (4, 6) and (3, 5) in the ratio 3: 5 internally.

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