MAT_1143-mar_28 - Click to edit Master subtitle style...

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Click to edit Master subtitle style March 28, 2011 Sections 5.6 (and a bit of review of 5.5)
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Exam 3 Exam 3 should be Wednesday, April 20 (still 3 weeks away) It will cover 4.7, 5.1-5.6, 6.1-6.5 We still have lots more to cover on our use of exponential functions.
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Review of some of our Topics from Before Spring Break Y=4*1.3x A-Growth B-Decay Growth Factor? A. 4 B. 30% C. 1.3 D. 130% Growth Rate? A. 4 B. 30% C. 1.3 D. 130% Remember: growth factor = 1 + growth rate OR Growth rate = growth factor – 1 (how far from 1 is the factor-written as a percent)
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Y=2*0.8x A-Growth B-Decay Decay Factor? A. 20% B. 80% C. 0.80 D. 2 Decay Rate? A. 20% B. 80% C. 0.80 D. 2 Remember: decay factor = 1 - decay rate OR Decay rate = 1- decay factor (how far from 1 is the factor-written as a percent)
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If we are told we have a decay rate of 15% and an intial value of 20, our equation would be: A. 20*0.15t B. 20*1.15t C. 20*0.85t D. 15*0.20t
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Examples of Exponential Growth and Decay Section 5.6 gives MANY examples beyond some of the ones we’ve already seen.
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