Algebra
Card Set Information
Author:
KattthD
ID:
125988
Filename:
Algebra
Updated:
2012-01-04 21:38:21
Tags:
Algebra
Folders:
Description:
Exponential Functions
Show Answers:
Exponential Function and label the values
f(x) = b^x
b-base, constant
x-exponent, independent variable
Given a exponential function, with no specific x, what do you do?
You input your own values.
Given a exponential function, with no specific x, what do you put your domain as?
"all real numbers"
What does the domain and range represent?
Domain-x value
Range-y value
How would you write the domain?
D-all real numbers
R- {y|y>0}
Exponential Growth
f(x) = ab^x, with a>0 and b>1
The function increases as x increases
Exponential Decay
0<b<1
function dcreases as x increases
Is this a growth or decay function? f(x) = 1.5^x
Growth
Is this a growth or decay function? f(x) = (.8^x)?
Decay