Question 493238
Say you want to graph x>4.

You plot 4 on your number line and draw a line extending up the number line with an arrow on the end pointing to infinity. When you plot 4 use an empty dot, a little circle.

If x is greater than or equal to 4, have a filled in dot at 4 and the line with the arrow pointing up the line.

Do you need to graph a compound inequality?
Say x > 4 and x < 6

Plot 4 with line and an arrow up the line and 6 with a line and an arrow down the line.

Again, use the little circle to plot the numbers on the line.  Draw the line between 4 and 6 a bit heavy on the paper so your teacher can tell that section from the rest of the number line.

If you want to graph 4 < x or 6 > x, plot 4 with an arrow pointing down and 6 with an arrow pointing up the number line.

Just remember, fill in the dot if there's an "or equal to" in the inequality but not if its just < or >.