Answer
Given the inequality:

To graph the inequality:

We need to graph this equation
y= 3x
x y
0 0
1 3
2 6
3 9
Now, using these points plot the graph of y=3x
Now, to test the inequality:

Let any point (1, 0) from the given graph as shown below then
0< 3(1)
0< 3 true.
Since, this inequality is true
Now, shade the entire region that contain point (1, 0)
Graph of the inequality
contains the dotted line which does not include the line y=3x and the solution will be the region area shaded less than y.