Exponential Functions - Vocabulary

rate

(1 - growth factor) or (growth factor - 1)

a Half

1/2 or 0.50

a Third

1/3 or 0.33

a Quarter

1/4 or 0.25

Positive Correlation

A correlation where as one variable increases, the other also increases, or as one decreases so does the other. Both variables move in the same direction.

Negative Correlation

A finding that two factors vary systematically in opposite directions, one increasing as the other decreases.

decreases

Exponential Decay

depreciates

Exponential Decay

loss value

Exponential Decay

appreciates

Exponential Growth

gains values

Exponential Growth

growing

Exponential Growth

increases

Exponential Growth

The population (y) doubles

Exponential Growth Growth Factor of 2

the amount (y) Triples

Exponential Growth Growth Factor of 3

Four Times as many of the amount (y)

Exponential Growth Growth factor of 4

No Correlation

There is no relationship between data sets.

Linear Function

a function in which the graph of the solutions forms a line

Exponential Function

a function that can be described by an equation of the form y= a*b^x, where b > 0 and b ≠ 1.

growth or decay factor

the fixed multiplier

Exponent

the power to which a number, symbol, or expression is to be raised

initial value

the starting amount or y-intercept of the graph

exponential function

y=starting value(growth factor)^x