Daily Archives: May 19, 2010

Day 166 – May 19

Algebra: Chapter 12, Lesson 7, page 565. Joint and Combined Variation An equation of the form `z = kxy`, where `k` is a constant, expresses joint variation. An equation of the form `z = (kx)/y` expresses combined variation. There are … Continue reading

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Day 165 – May 18

Algebra: Chapter 12, Lesson 6, page 561. Inverse Variation An equation of the form `y = k/x` where `k` is a constant, expresses inverse variation. Just like in direct variation, find the constant of variation, `k`, then use that to … Continue reading

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