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CBSE Class 10 Answered

Find the ratio in which the point (2,y) divides the line segment joining the points A(-2,2) and B(3,7) and the value of y.
Asked by chittukala7 | 07 Dec, 2015, 06:47: PM
answered-by-expert Expert Answer

Vijay doing

Let (2, y) divides line segment joining AB in m:n.

By space using space section space formula comma 2 equals fraction numerator 3 straight m minus 2 straight n over denominator straight m plus straight n end fraction space space space and space space space straight y equals fraction numerator 7 straight m plus 2 straight n over denominator straight m plus straight n end fraction 2 straight m plus 2 straight n equals 3 straight m minus 2 straight n space space space and space my plus ny space equals space 7 straight m plus 2 straight n straight m equals 4 straight n space space and space my plus ny space equals space 7 straight m plus 2 straight n therefore open square brackets 4 straight n close square brackets straight y plus ny space equals space 7 open square brackets 4 straight n close square brackets plus 2 straight n 5 ny equals 30 straight n straight y equals 6

Answered by | 07 Dec, 2015, 07:06: PM

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