1. Warm Up 04.15.13 Week 5 Solve if x = 6, and 4: Does x=6 make the answer larger or smaller than x=4?

2. Section 11.3 Day 1 I will use direct and inverse variation. Direct Variation k ≠ 0

3. Inverse Variation k ≠ 0

4. Ex 1 x = 2 and y = 4 Direct VariationInverse Variation 2 2 Write an equation:

5. Inverse Variation xy 1 2 3 4 Ex 2 Direct Variation y = 2x xy 1 2 3 4 2 4 6 8 8 4 2

6. Ex 3 If x = 2 and y = -6, find y when x = 8 y varies directly with x:

7. Ex 4 Write an equation that varies inversely :

8. Assign ment: Handout – 11.3 Day 1 “MUST DO WORD PROBLEMS” Check 1: Does the graph show direct, inverse or no variation? a)b)c)

9. Re 1 Blue ( 5 + 5 )( 5 + 7 + 5 ) YellowTotal Area (Base) ( 10 )( 17 ) 170 170 – 50 25 120 170 0.706 70.6% 170 – 120 50 170 0.294 29.4%