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Line through the points (-2,6) and (4,80...

Line through the points (-2,6) and (4,80 is perpendicular to the line through the points (8,12) and `(x , 24)dot` Find the value of `xdot`

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Let points be A `(-2,6)`, B`(4,8)`, C`(8,12)` and D`(x, 24)`
If two lines are perpendicular, then product of their slope is -1
So, Slope of A B times Slope of `C D=-1` ……..(1)
We know that slope of a line through the points `(x_1, y_1)`,`(x_2, y_2)` is `m`=`frac(y_2-y_1)(x_2-x_1)`
Slope of line A B passing through A(-2,6) and B(4,8) is ...
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RD SHARMA-THE STRAIGHT LINES -Solved Examples And Exercises
  1. Without using distance formula, show that points (2," "1) , (4," "0) ,...

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  2. Find the angle between the X-axis and the line joining the points (3,-...

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  3. Line through the points (-2,6) and (4,80 is perpendicular to the line ...

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  4. Find the value of x for which the points (x-1),\ (2,1)a n d\ (4,5)\ a...

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  5. Find the angle between X-axis an the line joining the points (-3,-1) ...

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  6. By using the concept of slope, show that the points (-2,-1), (4,0), ...

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  7. A quadrilateral has vertices (4,1), (1,7),(-6,0) AND (-1,-9). Show th...

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  8. Write down the equation of the following lines: x-axis

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  9. Write down the equation of the following lines: y-a xi s

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  10. Write down the equation of the following lines:  A line parallel to x-...

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  11. Write down the equation of the following lines: a line parallel to ...

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  12. Find the equation of a line which is parallel to x-axis and passes ...

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  13. Find the  equation of the line parallel to x-axis and passing throu...

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  14. Find the equation of the line perpendicular to x-axis and having in...

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  16. Find the equation of the line parallel to x-axis of and having inte...

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  17. Draw the lines x=-3,\ x=2,\ y=-2,\ y=3 and write the coordinates of th...

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  18. Find the equations of the straight lines which pass through (4,3) and ...

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  19. Find the equation of a line which is equidistant from the lines x=-2\ ...

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  20. find the equation of a line equidistant from the lines y=10\ a n d\ y=...

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