Question 1085241
the graph of x < 4 will have a vertical dashed line at x = 4 and the shaded region will be to the left of that line.


it will look like this:


<img src = "http://theo.x10hosting.com/2017/061801.jpg" alt="$$$" </>


if the inequality was x <= 4, then the vertical dashed line would have become a vertical solid line.


the dash line means less than or greater than, but not equal.


the solid line means less than or greater than or equal.