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If P((a)/(3),4) is the mid the point of ...

If `P((a)/(3),4)` is the mid the point of the line segment joining the points Q(-6,5) and R(-2,3), then the value of a is

A

-4

B

-12

C

12

D

-6

Text Solution

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The correct Answer is:
D
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DISHA PUBLICATION-COORDINATE GEOMETRY-FOUNDATION LEVEL
  1. show that point (a , b + c) , (b , c + a) and (c , a + b) are collinea...

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  2. The angle between the lines y = (2-sqrt(3))X + 5 and y = (2+sqrt(3))X ...

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  3. Find the ratio in which the point (2, y) divides the join of (- 4, 3) ...

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  4. The area of quadrilateral with vertices (2, 4), (0, 4), (0, - 4), (2, ...

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  5. If P((a)/(3),4) is the mid the point of the line segment joining the p...

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  6. The ratio in which the line 2x + y - 4 = 0 divides the line segment jo...

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  7. Which of the following points is the nearest to the origin?

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  8. Find the distance between the two parallel straight lines y = mx + c a...

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  9. If the points (1, 1), (-1, -1) and (-sqrt(3),k) are vertices of a equ...

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  10. The image of the point (3,8) in the line x + 3y = 7 is

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  11. The image of the point (3,8) in the line x + 3y = 7 is

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  12. D is a point on AC of the triangle with vertices A(2, 3), B(1, -3), C(...

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  13. Ratio in which the line 3x + 4y = 7 divides the line segment joining t...

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  14. If the area of a triangle with vertices (- 3, 0), (3, 0) and (0, k) is...

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  15. The line mx + ny = 1 passes through the points (1, 2) and (2, 1). What...

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  16. The line y = 0 divides the line joining the points (3, -5) and (- 4, 7...

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  17. For what value of k, the equations 3x - y = 8 and 9x - ky = 24 will h...

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  18. The equations of two equal sides AB and AC of an isosceles triangle AB...

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  19. What is the equation of a line parallel to x-axis at a distance of 5 u...

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