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determine the ratio in which the line 3 X + Y =9 line segment joining the point (1,3)and (2,7).

Posted by Diksha?.. Atm..?? 6 years, 10 months ago

CBSE > Class 10 > Mathematics

4 answers

Deepak Yadav 6 years, 10 months ago

Let the ratio be k:1 Applying section formula, x = (2k+1/k+1) , and , y = (7k+3/k+1) Therefore , 3x + y = 9 3(2k+1/k+1) + (7k+3/k+1) = 9 (6k+3/k+1) + (7k+3/k+1) = 9 6k+3+7k+3/k+1 = 9 13k+6/k+1 = 9 13k+6 = 9k+9 4k = 3 k = 3/4 Therefore, the required ratio = 3:4

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Honey ??? 6 years, 10 months ago

Let it divides it in the ratio m:n and coordinates of intersection is x,y Now find x and y in terms of m and n by the help of section form. and then put the val. on the line seg. you will get the ratio.?????????????????????

0Thank You

Diksha?.. Atm..?? 6 years, 10 months ago

Sol. It

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Honey ??? 6 years, 10 months ago

3:4

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