Find the Slopes of the lines whose inclinations are

(i) 45⁰  (ii) 30⁰  (iii) 90⁰  

(i) 45⁰

Solution:      

The slope of line = tan θ

∴ The slope of the line = tan 45⁰ = 1

∴ The slope of the line is 1.

(ii) 30⁰

Solution:

The slope of line = tan θ

(iii) 90⁰

Solution:

Solution:

The slope of line = tan θ

∴ The slope of the line = tan 90⁰ = Not Defined

∴ The slope of the line is Not Defined.