Answer
Ans. a=120° , b=76°
Work Step by Step
Given:- a. 3y=-√3x+2
We know that tan$\theta$=m=slope
Comparing above equation with y=mx+c
m=-1/√3
tan$\theta$=-1/√3
$\theta$=120°
b. y=4x-7
We know that tan$\theta$=m=slope
Comparing above equation with y=mx+c
m=4
tan$\theta$=4
$\theta$=75.96~76°
Ans.