Answer
See graph and explanations.
Work Step by Step
Step 1. Graph the line $2x-y=4$; as the inequality does not include an equal sign, make this line dashed.
Step 2. Using a test point away from the line, such as $(0,0)$, we have $0\gt4$ which is not true; thus the other side not with this test point should be shaded as shown in the figure.
