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The point which divides the line segment...

The point which divides the line segment joining the points (8,–9) and (2,3) in ratio 1 : 2 internally lies in the

A

I quadrant

B

II quadrant

C

III quadrant

D

IV quadrant

Text Solution

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The correct Answer is:
To solve the problem of finding the point that divides the line segment joining the points (8, -9) and (2, 3) in the ratio 1:2 internally, we will use the section formula. Let's go through the steps: ### Step-by-Step Solution: 1. **Identify the Points and the Ratio:** - Let point A = (8, -9) and point B = (2, 3). - The ratio in which point P divides the line segment AB is 1:2. 2. **Assign Coordinates:** - Let the coordinates of point A be (x1, y1) = (8, -9). - Let the coordinates of point B be (x2, y2) = (2, 3). - The ratio is m:n = 1:2, where m = 1 and n = 2. 3. **Use the Section Formula:** - The coordinates of point P (x, y) that divides the line segment AB in the ratio m:n are given by: \[ x = \frac{mx_2 + nx_1}{m+n} \] \[ y = \frac{my_2 + ny_1}{m+n} \] 4. **Substituting the Values:** - For x-coordinate: \[ x = \frac{1 \cdot 2 + 2 \cdot 8}{1 + 2} = \frac{2 + 16}{3} = \frac{18}{3} = 6 \] - For y-coordinate: \[ y = \frac{1 \cdot 3 + 2 \cdot (-9)}{1 + 2} = \frac{3 - 18}{3} = \frac{-15}{3} = -5 \] 5. **Coordinates of Point P:** - Therefore, the coordinates of point P are (6, -5). 6. **Determine the Quadrant:** - The x-coordinate is positive (6) and the y-coordinate is negative (-5). - This means point P lies in the fourth quadrant. ### Final Answer: The point which divides the line segment joining the points (8, -9) and (2, 3) in the ratio 1:2 internally lies in the **fourth quadrant**.

To solve the problem of finding the point that divides the line segment joining the points (8, -9) and (2, 3) in the ratio 1:2 internally, we will use the section formula. Let's go through the steps: ### Step-by-Step Solution: 1. **Identify the Points and the Ratio:** - Let point A = (8, -9) and point B = (2, 3). - The ratio in which point P divides the line segment AB is 1:2. ...
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