Exponential Questions

Is the following function an example of decay or growth? f(x) = 2(1.25)^x

• Exponential Growth

• Exponential Decay

Which equation is represented by the table?

• y = 40(2)^x

• y = 40(1/2)^x

• y = 40 - 2x

• y = 40 - 1/2x

What does the y-intercept of the graph represent?

• The amount of grams the material is gaining.

• The amount of grams the material is losing.

• The amount of grams remaining after so many years.

• The initial amount of grams.

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

• -∞ ≤ x ≤ ∞

• -∞ ≤ y ≤ ∞

• x > 0

• y > 0

What kind of equation is indicated by the pictured table?

• Exponential Decay

• Exponential Growth

• Linear Decay

• Linear Growth

The exponential growth function y=2^x

• has a horizontal asymptote at y=0.

• has the end behavior "As x approaches negative infinity, y approaches 0, and as x approaches positive infinity, y approaches positive infinity".

• is a mirror image of the exponential decay function y=(0.5)^x.

• Has all of these properties.

Match the following key features for the exponential function

• Growth

• y intercept

• NONE

• x intercept

• (0,4)

• Domain

• Increasing or Decreasing?

• Range

Classify the model as Exponential GROWTH or DECAY.
A=10(1.01)³

• Growth

• Decay

What is the initial value in y=4(2)^x

• 4

• 2

• x

What is the common ratio for the function f(x) = 25 (4)^x

• 25

• 4