Find the equation of the dotted line:
1. Find the slope:
2. Find the y-intercept (b): the value of y when the line cross y-axis:
b=4
Then, the eqution of the line is: y=-2x+4
To write the inequality:
When the line is a dotted line you use > or <, whne it is a full line you use ≥ or ≤
When the sahdow area is under the line use < or ≤, when the shadow area is over the line you use > or ≥
Then, as you have a dotted line and the shadow area in under that line, you get the next inequality: