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Introduction to Logarithms. Lesson 7.3. Review: y = ab x. a: initial value/y-intercept b: growth rate Growth: b > 1 Decay: 0 < b < 1. A bacteria population doubles every hour. If you start with a sample of 40 bacteria, how many will there be in 3 hours?.
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Introduction to Logarithms Lesson 7.3
Review: y = abx • a: initial value/y-intercept • b: growth rate • Growth: b > 1 • Decay: 0 < b < 1
A bacteria population doubles every hour. If you start with a sample of 40 bacteria, how many will there be in 3 hours?
A bacteria population doubles every hour. If you start with a sample of 40 bacteria, after how many hours will there be 1000 bacteria present?
a power m n b
2 0 4 4 2 0
-3 -1 -2 -2 -1 -3
2 .903 .602 1.857
2.079 1 1.099 1 0 -.288