Fitting Exponential Functions to Data

Identify the y-intercept (initial value) in the function y=13(.27)^x

• 0

• .27

• 13

• 3.51

What is the range of f(x) = 2(5)^x?

• y < 2

• y < 0

• y > 2

• y > 0

Identify the common ratio (multiplier) of the function f(x)=2(4)^x.

• 2

• 4

• 1

• 8

What is the domain of f(x) = 2(5)^x?

• x < 2

• x < 0

• x > 5

• all real numbers

Determine if the table represents linear or Exponential Function.

• Linear

• Exponential

• Neither

In an exponential function, what does the 'a' represent?

• Y-INTERCEPT (also the initial amount)

• GROWTH OR DECAY FACTOR

In an exponential function, what does the 'b' represent?

• Y-INTERCEPT (also the initial amount)

• GROWTH OR DECAY FACTOR

What is the initial amount, for the function: f(x) = 300(1.16)^x?

• 300

• 1.16

• .16

• x

• Exponential Growth

• Exponential Decay

• Linear

• None of the above

If y = ab^x represents an exponential growth function, what are the possible values of b?

• b = 1

• b > 1

• b < 0

• 0 < b < 1