Question

The inclination of a line is ${30}^{\circ }$, then the slope of the line is

• A. $0$
• B. $1$
• C. $\sqrt{3}$
• D. $\frac{1}{\sqrt{3}}$

Answer 1

Answer: (D)

$\frac{1}{\sqrt{3}}$

We know that, if inclination of a line with positive x-axis is $\theta$, then slope $,m=\tan \theta$

Here $\theta ={30}^o$ is given

So slope, $m=\tan {30}^o=\frac{1}{\sqrt{3}}$