Explanations:
Given the equation of the given graph as 4x + 5y = 20, in order to change the graph to give the inequality 4x + 5y < 0, we will need to apply the following;
- Shade the down portion of the graph since the inequality sign is "less than"
- The straight thick line will also change to be a broken line since the expression is no longer equal to 20.
The resulting graph for the inequality expression 4x + 5y < 20 is as shown below: