Exponential and Logs Review

Describe the transformation of the graph f(x)=logx which results in the graph of f(x)=log(x-7)

• horizontal translation 7 right

• horizontal translation 7 left

• vertical translation 7 up
  vertical translation 7 up

• vertical translation 7 down

What is r, the decay rate, for the function: f(x) = 800(0.85)^T

• 800%

• 85%

• 15%

• 185%

The value of a car is $15,000 and decreases at a rate of 8% per year. What is the exponential equation?

• y=8(15,000)^T

• y=15,000(1.08)^T

• y=15,000(0.92)^T

• y=15,000(0.08)^T

Classify the following graph.

• Exponential Growth

• Exponential Decay

• Logarithmic

Describe the transformations of f(x)= -log₂(x+1)

• left one & y-axis reflection

• right one & y-axis reflection

• left one & x-axis reflection

• right one & x-axis reflection

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

• Exponential Growth

• Exponential Decay

What transformations occur in the following function?

• right 3, up 2

• left 3, up 2

• left 3, down 2

• right 3, down 2

What is the asymptote of the parent function y=2^x?

• x=0

• y=0

• x=2

• y=2

Pick the equation that is exponential decay

• y = 2000(0.88)^x

• y = 0.5(1.88)^x

• y = 10(3/2)^x

• y = 0.8(13)^x

The population of Winnemucca, Nevada, can be modeled by P=6191(1.04)^t where t is the number of years since 1990. What was the population in 1990? 

• 0 people

• It doesn't say

• I don't know

• 6191