We have two points
(3,0) and (0,1)
Now, find the slope !
m = (y2-y1) / (x2-x1)
:. m = (1-0) / (0-3)
m = - 1/3
According to the equation
y = mx + b
Substitute one of points with x and y, ex (3,0)
0 = -1/3 x 3 + b
:. b = 1
So, the equation will be :
y = -1/3X + 1
Since the points located at below !
So, the inequality will be less than or equal
y ≤ -1/3X + 1