[1 Mark Question Answer]

Question 11 Mark

Write the slope of the line which is $:$ Perpendicular to the $y-$axis.

Answer

For any line which is perpendicular to $ y-$axis, the inclination is $\theta = 0 ^\circ $
Therefore$,$ Slope$(m) = \tan \theta = \tan 0^\circ = 0.$

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Question 21 Mark

Write the slope of the line which is: Parallel to the $ y-$axis.

Answer

For any line which is parallel to $y-$axis, the inclination is $\theta = 90^\circ $
Therefore$,$ Slope$(m) = \tan \theta = \tan 90^\circ = \infty ($not defined$).$

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Question 31 Mark

Write the slope of the line which is$: $Perpendicular to the $x-$axis.

Answer

For any line which is perpendicular to $x-$axis, the inclination is $\theta = 90^\circ $Therefore$, $Slope$(m) = \tan \theta = \tan 90^\circ = \infty ($not defined$).$

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Question 41 Mark

Write the slope of the line which is: Parallel to the $x-$axis.

Answer

For any line which is parallel to $x-$axis$,$ the inclination is $\theta = 0^\circ $
Therefore$, $Slope$(m) = \tan \theta = \tan 0^\circ = 0.$

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Question 51 Mark

Write the inclination of a line which is: Perpendicular to the $ y-$axis.

Answer

The inclination of a line perpendicular to the $y-$axis is $ \theta = 0^\circ .$

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Question 61 Mark