ICSE BoardEnglish MediumSTD 9MATHEMATICSCo-ordinate Geometry1 Mark
Question
Write the slope of the line which is$: $Perpendicular to the $x-$axis.
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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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