13 terms

# A2Vocab- Exponential Functions

#### Terms in this set (...)

exponential function
A function in the form y=ab^x, where x is a real number, a≠0, b>0, and b≠1
y-intercept
The point at which a graph crosses or touches the y axis
growth factor
The base in an exponential function if the base is greater than 1
Decay factor
The base in an exponential function if the base is between 0 and 1
exponential growth
Growth whose rate becomes ever more rapid in proportion to the growing total number or size
half life
The time it takes for the radioactivity of a specified isotope to fall to half of its original value
quarterly
4 times per year
monthly
12 times per year
Compound interest
Interest added to the principal of a deposit or loan so that the added interest also earns interest from then on
principal
The amount of money that is lent or invested
Euler's number
An irrational number designated by e, whose value is approximately 2.718.
horizontal asymptote
A horizontal boundary line that an exponential function approaches
depreciation
The decline in an item's value resulting from age or wear