2.5

Topic

Exponential Function Context and Data Modeling

Practice by unit: Exponential and Logarithmic Functions

Sub-standards

• 2.5.B.1 — Apply exponential models to answer questions about a data set or contextual scenario. For an exponential model in general form f x) = ab x ( , the base of the exponent, b, can be understood as a growth factor in successive unit changes in the input values and is related to a percent change in context.
• 2.5.B.2 — Equivalent forms of an exponential function can reveal different properties of the function. For example, if d represents number of days, then the base of f d( ) = 2 d indicates that the quantity increases by a factor of 2 every day, but the equivalent form ( ) = (2 7) (d/7) f d indicates that the quantity increases by a factor of 7 2 every week.