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In what ratio does the point P(2,(-5)/(6...

In what ratio does the point `P(2,(-5)/(6))` divide the line joining the points `A(-3,5)` and `B(3,-2)` ?

A

`1:5`

B

`5:1`

C

`2:3`

D

`3:5`

Text Solution

AI Generated Solution

The correct Answer is:
To find the ratio in which the point \( P(2, -\frac{5}{6}) \) divides the line segment joining the points \( A(-3, 5) \) and \( B(3, -2) \), we can use the section formula. ### Step-by-Step Solution: 1. **Identify the Coordinates:** - Let \( A(-3, 5) \) be \( (x_1, y_1) \) - Let \( B(3, -2) \) be \( (x_2, y_2) \) - Let \( P(2, -\frac{5}{6}) \) be the point that divides the line segment \( AB \). 2. **Assume the Ratio:** - Let the ratio in which \( P \) divides \( AB \) be \( \lambda : 1 \). 3. **Use the Section Formula:** - The coordinates of point \( P \) can be expressed using the section formula: \[ P\left( \frac{x_1 \cdot n + x_2 \cdot m}{m+n}, \frac{y_1 \cdot n + y_2 \cdot m}{m+n} \right) \] - Here, \( m = \lambda \) and \( n = 1 \). 4. **Set Up the Equations:** - For the x-coordinate: \[ 2 = \frac{-3 \cdot 1 + 3 \cdot \lambda}{\lambda + 1} \] - For the y-coordinate: \[ -\frac{5}{6} = \frac{5 \cdot 1 + (-2) \cdot \lambda}{\lambda + 1} \] 5. **Solve the x-coordinate Equation:** - Cross-multiply: \[ 2(\lambda + 1) = -3 + 3\lambda \] - Expand: \[ 2\lambda + 2 = -3 + 3\lambda \] - Rearranging gives: \[ 2 + 3 = 3\lambda - 2\lambda \] \[ 5 = \lambda \] 6. **Conclusion:** - The ratio in which point \( P \) divides the line segment \( AB \) is \( \lambda : 1 = 5 : 1 \). ### Final Answer: The point \( P(2, -\frac{5}{6}) \) divides the line segment joining \( A(-3, 5) \) and \( B(3, -2) \) in the ratio \( 5 : 1 \).
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