(a) What is the relative growth rate? Express your answer as a percentage. (b) What was the intitial size of the culture? (c) Find an expression for the number of bacteria after t hours. (d) Find the number of cells after 4.5 hours. (e) Find the rate of growth after 4.5 hours. (f) When will the population reach 50,000?

Big Ideas Math A Bridge To Success Algebra 1: Student Edition 2015
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ISBN:9781680331141
Author:HOUGHTON MIFFLIN HARCOURT
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Chapter8: Graphing Quadratic Functions
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4. A bacteria culture grows with constant relative growth rate. The
bacteria count was 400 after 2 hours and 25,600 after 6 hours.
(a) What is the relative growth rate? Express your answer as a
percentage.
(b) What was the intitial size of the culture?
(c) Find an expression for the number of bacteria after t hours.
(d) Find the number of cells after 4.5 hours.
(e) Find the rate of growth after 4.5 hours.
(f) When will the population reach 50,000?
7.4:4
Transcribed Image Text:4. A bacteria culture grows with constant relative growth rate. The bacteria count was 400 after 2 hours and 25,600 after 6 hours. (a) What is the relative growth rate? Express your answer as a percentage. (b) What was the intitial size of the culture? (c) Find an expression for the number of bacteria after t hours. (d) Find the number of cells after 4.5 hours. (e) Find the rate of growth after 4.5 hours. (f) When will the population reach 50,000? 7.4:4
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