1. Warm Up 1)Suppose y varies inversely with x, Write an equation that includes the point (4,2) 2)The length of a violin string varies inversely as the frequency of its vibrations. A violin string 14 in long vibrates at a frequency of 450 cycles per second. Find the frequency of a 12- in violin string.

3. Review: Simple Rational Functions Identify vertical and horizontal asymptotes and state domain and range. 1)

4. Multiplying Rational Expressions 1. 2.

5. Dividing Rational Expressions 1. 2.

6. Adding and Subtracting Fractions

7. Adding Rational Expressions.

8. Subtracting Rational Expressions.