**For these problems, instead of just having one answer, like x = 3**

**We are going to get a range of answers, called an interval... Like this:**

**This means that x can be 1 ... or x can be bigger than 1 ... x can be 2 or 4.671 or 1.00001 or 50,000,000.**

**One way to write this interval is**

**(read "x is greater than or equal to 1" )**

**So, what would this mean on a number line?**

**Just read it! "x is less than 3."**

**We put an open dot at the 3, since x cannot be 3.**

**So, x < 3 means that x cannot be 3, but it can be a number less than 3... like 2.998 ... or 0 ... or -5931. **