$\"\"$

Inclination and slope: If a non vertical line has inclination $\"\"$ and has a slope $\"\"$ ,

then $\"\"$ .

The inclination angle $\"\"$ radians.

The slope is $\"\"$ .

Substitute $\"\"$ in above equation.

$\"\"$

The slope of the line is $\"\"$ .

$\"\"$

The slope of the line is $\"\"$ .