Question

Match the angles made by a line with the positive direction of x-axis with their slopes.

• A. 0.0
• B. 1
• C. Not defined

Answer 1

1. $\theta =0^o$
$Slope=tan\theta =tan{0}^o=0$

2. $\theta ={90}^o$
$Slope=tan\theta =tan{90}^o$
(an undefined value)

3. $\theta ={45}^o$
$Slope=tan{45}^o=1$