This preview has intentionally blurred sections. Sign up to view the full version.
View Full DocumentThis preview has intentionally blurred sections. Sign up to view the full version.
View Full Document
Unformatted text preview: its size Ex. The population of rabbits grows according to the function R(t) = 200(1.53) , where t is measured in years. Find the time it would take for a population of 200 rabbits to double in size. HalfLife: Halflife is the amount of time it takes for a decreasing exponential function to reduce to half of its previous size. Ex. The halflife of a particular substance ABC is 10 hours. Today you have 30 grams of the substance ABC. Find an equation that gives the amount of substance ABC remaining after t hours. Use this equation to determine the number of hours needed for the substance to decay to 5 grams. Converting between Y = ab and Y = ae From y = ab to y = ae b = growth facter, 1 + rate, e Ex. Y = 5(1.2) b = 1.2 Rate = .2 e = .2 k = .1823 Y = 5e From y = ae to y = ab Ex. Y = 3e K = .123 e = 1.13 = b y = 3(1.13) Solving Equations with ln and e Ex. e  6e + 5 = 0 Ex. (ln x)  6(ln x) = 7...
View
Full Document
 Spring '10
 Jacobs
 HalfLife, Natural logarithm, Logarithm, exponential form, Log Graphs, Jake Venditto Groom

Click to edit the document details