Download presentation
Presentation is loading. Please wait.
Published bySheena Hall Modified over 9 years ago
1
Goal 4.04: Exponential Functions
2
Exponential Growth and Decay
3
Exponential Growth Growth factor: b > 1 Divide by 100, then Add 1 4% compounded annually 12.3% monthly increase
4
Exponential Decay Growth factor: b < 1 Divide by 100, then SUBTRACT from 1 4% annual decrease Taxed at 6.7% per year
5
Examples An endangered tiger population of 120,000 decreases by 7% each year. If we do nothing to change the situation, how many tigers will be left after 5 years? Is this growth or decay? How do we solve?
6
Examples There are 400 rabbits in a lab. Due to reproduction, they triple every 2 months. How many will there be after 3 years?
7
Examples A $38,000 SUV depreciates by 18.5% every year. How much would it be worth after 10 years?
8
Examples Craig bought a utility trailer in 2007 for $2500. The trailer depreciates 7% each year. What is the difference in the trailer’s value of between the years 2011 and 2013?
9
You Try… 1. Jamar is breeding hopping ants in an ant farm. Hopping ants quadruple every 3 months. If Jamar initially had 10 ants, how many did he have after 3 years?
10
You Try… 2. The swine flu virus tripled in the number of infected patients every week. If there were only 7 people infected on May 1st, how many people in the US had the virus by June 1st? (Hint: Assume there are 4 weeks in a month) 3. Is the equation exponential growth or decay?
Similar presentations
© 2025 SlidePlayer.com. Inc.
All rights reserved.