Question

When the angle of inclination of the line with the x axis is ${45}^{\circ }$, the slope is equal to .

• A. 0.0
• B. $\frac{1}{\sqrt{3}}$
• C. $\sqrt{3}$
• D. 1

Answer 1

The correct option is D 1

When the angle of inclination of the line with the x axis is $\theta$, the slope of the line is given by $\tan \theta$

When the angle of inclination is ${45}^{\circ }$, the slope is $\tan {45}^{\circ }$, which is equal to 1.