1.

If a line makes an angle 45° with positive X-axis, then its slope isA) 1/√2B) 1/2C) √3/2D) 1

Answer»

Correct option is (D) 1

If a line makes an angle of \(\theta\) with positive X-axis then its slope is given by \(tan\,\theta.\)

\(\therefore\) Slope of line which makes angle of \(45^\circ\) with positive X-axis is \(m=tan\,45^\circ=1.\)

Correct option is D) 1



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