Like what you saw?
Create FREE Account and:
 Watch all FREE content in 21 subjects(388 videos for 23 hours)
 FREE advice on how to get better grades at school from an expert
 Attend and watch FREE live webinar on useful topics
Exponential Growth and Decay  Problem 4
Alissa Fong
Alissa Fong
MA, Stanford University
Teaching in the San Francisco Bay Area
Alissa is currently a teacher in the San Francisco Bay Area and Brightstorm users love her clear, concise explanations of tough concepts
If we know a rate of increase in a product's value (or growth in a population, etc,) we can write a growth model and use it to make predictions about expected values. Be careful with the units (here, time is done in decades) and be prepared to use the change of base formula if you're solving for a variable that is in the exponent. Lastly, we provide an overview of how to use a TI graphing calculator to determine expected value graphically.
Transcript Coming Soon!
Please enter your name.
Are you sure you want to delete this comment?
Alissa Fong
M.A. in Secondary Mathematics, Stanford University
B.S., Stanford University
Alissa has a quirky sense of humor and a relatable personality that make it easy for students to pay attention and understand the material. She has all the math tips and tricks students are looking for.
Your tutorials are good and you have a personality as well. I hope you have more advanced college level stuff, because I like the way you teach.”
Thanks alot for such great lectures... I never found learning this easier ever before... keep up the great work.... :)”
You seem so kind, it's awesome. Easier to learn from people who seem to be rooting for ya!' thanks”
Concept (1)
Sample Problems (8)
Need help with a problem?
Watch expert teachers solve similar problems.

Exponential Growth and Decay
Problem 1 5,418 viewsWhen Archeologists found King tuts tomb, they found a wooden stick that had 71% of its original carbon14 amount.
Using C14 dating and r = 0.00012 to figure out the age of the tomb. 
Exponential Growth and Decay
Problem 2 3,982 viewsThe amount of a drug in ones blood decreases according to A(t) = 10e^{2t}, with t in hours.
a) How much remains after 2 hours?b) When will there be half the original amount? 
Exponential Growth and Decay
Problem 3 3,006 viewsNumber of rabbits on a farm increases according to N(t) = 200e^{0.3t}, with t in months.
a) initial amountb) How many after 10 months?c) How long to triple? 
Exponential Growth and Decay
Problem 4 1,052 views 
Exponential Growth and Decay
Problem 5 846 views 
Exponential Growth and Decay
Problem 6 730 views 
Exponential Growth and Decay
Problem 7 918 views 
Exponential Growth and Decay
Problem 8 800 views
Comments (0)
Please Sign in or Sign up to add your comment.
·
Delete