Posted by **Brittani** on Tuesday, September 2, 2008 at 8:20pm.

My substitute teacher gaves us a worksheet that asks us to do problems we've never had before. How do I do unions and intersections on a number line using inequalities? Is there a formula for this?

Example: A intersects C

A={x|x>-3}

C={x|x greater than or equal to 0}

Example 2: A union C

A and C equal the same as above.

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