# Ex 7.2, 1

Last updated at Feb. 25, 2017 by Teachoo

Last updated at Feb. 25, 2017 by Teachoo

Transcript

Ex 7.2, 1 Find the coordinates of the point which divides the join of ( 1, 7) and (4, 3) in the ratio 2 : 3. Let the given points be A( 1, 7) & B(4, 3) Let the point be P(x , y) which divides AB in ratio 2:3 Here, x = ( _1 _2+ _1 _1)/( _1+ _2 ) Where, m1 = 2 , m2 = 3 x1 = 1 , x2 = 4 Hence, putting values x = (2 4 +3 1)/(2 + 3) x = (8 3)/5 x = 5/5 x = 1 Now, finding y y = ( _1 _2+ _2 _1)/( _1+ _2 ) Where, m1 = 2 , m2 = 3 x1 = 7 , x2 = 3 Hence, putting values y = (2 3 + 3 7)/(2 + 3) y = ( 6 + 21 )/5 y = 15/5 y = 3 Hence x = 1, y = 3 So, the required point is P(x, y) = P(1 , 3)

Class 10

Important Questions for Exam - Class 10

- Chapter 1 Class 10 Real Numbers
- Chapter 2 Class 10 Polynomials
- Chapter 3 Class 10 Pair of Linear Equations in Two Variables
- Chapter 4 Class 10 Quadratic Equations
- Chapter 5 Class 10 Arithmetic Progressions
- Chapter 6 Class 10 Triangles
- Chapter 7 Class 10 Coordinate Geometry
- Chapter 8 Class 10 Introduction to Trignometry
- Chapter 9 Class 10 Some Applications of Trignometry
- Chapter 10 Class 10 Circles
- Chapter 11 Class 10 Constructions
- Chapter 12 Class 10 Areas related to Circles
- Chapter 13 Class 10 Surface Areas and Volumes
- Chapter 14 Class 10 Statistics
- Chapter 15 Class 10 Probability

About the Author

Davneet Singh

Davneet Singh is a graduate from Indian Institute of Technology, Kanpur. He has been teaching from the past 9 years. He provides courses for Maths and Science at Teachoo.