Question

18. Find the ratio in which the y-axis divides the line segment joining the points (4, -6) and (-7,-4).​

Answer 1

Given points ;

• A(4,-6)
• B(-7,-4)

Given that y-axis divides the line AB.

Let it be in the ratio m:n

We know that on the x axis the x-coordinate = 0

Thu by using section formula ;

• Thu by using section formula ;x = (mx2 + nx1)/(m+n)

• 0 = -7m + 4n/m+n
• 0 = -7m + 4n
• 7m = 4n
• m/n = 4/7

Thus y-axis divides the line in the ratio m:n = 4:7

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