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What Can Be Said Regarding a Line If Its Slope is Zero ?

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प्रश्न

What can be said regarding a line if its slope is  zero ?

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उत्तर

 If the slope of a line is zero, then the line is either the x-axis itself or it is parallel to the x-axis.

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अध्याय 23: The straight lines - Exercise 23.1 [पृष्ठ १३]

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आर.डी. शर्मा Mathematics [English] Class 11
अध्याय 23 The straight lines
Exercise 23.1 | Q 7.1 | पृष्ठ १३

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संबंधित प्रश्न

Find the value of x for which the points (x, –1), (2, 1) and (4, 5) are collinear.


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  1. Parallel to the x-axis,
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Find the equation of a line drawn perpendicular to the line `x/4 + y/6 = 1`through the point, where it meets the y-axis.


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State whether the two lines in each of the following is parallel, perpendicular or neither.

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Find the slope of a line (i) which bisects the first quadrant angle (ii) which makes an angle of 30° with the positive direction of y-axis measured anticlockwise.


Using the method of slope, show that the following points are collinear A (16, − 18), B (3, −6), C (−10, 6) .


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What can be said regarding a line if its slope is negative?


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Find the angle between X-axis and the line joining the points (3, −1) and (4, −2).


Find the equation of a line which is perpendicular to the line joining (4, 2) and (3, 5) and cuts off an intercept of length 3 on y-axis.


Find the equations of the straight lines which cut off an intercept 5 from the y-axis and are equally inclined to the axes.


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