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The straight line through a fixed point ...

The straight line through a fixed point (2,3) intersects the coordinate axes at distinct point P and Q. If O is the origin and the rectangle OPRQ is completed then the locus of R is

A

`3x+2y=6xy`

B

`3x+2y=6`

C

`2x+3y=xy`

D

`3x+2y=xy`

Text Solution

AI Generated Solution

The correct Answer is:
To solve the problem step by step, we need to find the locus of point R, which is formed by the rectangle OPRQ, where O is the origin, P is on the x-axis, Q is on the y-axis, and the line passes through the fixed point (2, 3). ### Step-by-Step Solution: 1. **Understanding the Points**: - Let P be the point where the line intersects the x-axis, so P = (h, 0). - Let Q be the point where the line intersects the y-axis, so Q = (0, k). - The fixed point through which the line passes is (2, 3). 2. **Equation of the Line**: - The line can be expressed in intercept form as: \[ \frac{x}{h} + \frac{y}{k} = 1 \] 3. **Substituting the Fixed Point**: - Since the line passes through the point (2, 3), we substitute x = 2 and y = 3 into the line equation: \[ \frac{2}{h} + \frac{3}{k} = 1 \] 4. **Clearing the Denominators**: - Multiply through by hk to eliminate the denominators: \[ 2k + 3h = hk \] 5. **Rearranging the Equation**: - Rearranging gives: \[ hk - 2k - 3h = 0 \] - This can be rewritten as: \[ hk - 3h - 2k = 0 \] 6. **Expressing in Terms of x and y**: - Since we want the locus of point R, we replace h with x and k with y: \[ xy - 3x - 2y = 0 \] 7. **Final Form**: - Rearranging gives us: \[ 3x + 2y = xy \] ### Conclusion: The locus of point R is given by the equation: \[ 3x + 2y = xy \]

To solve the problem step by step, we need to find the locus of point R, which is formed by the rectangle OPRQ, where O is the origin, P is on the x-axis, Q is on the y-axis, and the line passes through the fixed point (2, 3). ### Step-by-Step Solution: 1. **Understanding the Points**: - Let P be the point where the line intersects the x-axis, so P = (h, 0). - Let Q be the point where the line intersects the y-axis, so Q = (0, k). - The fixed point through which the line passes is (2, 3). ...
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