Exponential Decay and Growth

What is the decay rate in the following model?
A=1200(.85)⁶

• -1200

• -.15

• 6

• -6

Is the pictured graph growth, decay, or linear or none?  

• Exponential Growth

• Exponential Decay

• Linear

• None

What type of function is y = 7(5/4)^x?

• Exponential Growth

• Exponential Decay

• Linear

• None of the above

Find the range of the exponential graph.

• All real numbers less than 0

• All real numbers greater than 0

• All real numbers less than or equal to 0

• All real numbers greater than or equal to 0

Identify the domain of this exponential function?

• All real numbers

• All real number greater than or equal to 0

• All real numbers greater than 0

• All real numbers less than or equal to 1

Which of the following is a true statement about the two exponential graphs shown?

• The domain of f(x) is different from the domain of g(x)

• g(x) has a horizontal asymptote that is lower than the asymptote of f(x)

• The graphs have the same initial value

• The graphs have a different x-intercept

Determine if the graph represents growth or decay. Also determine the y-intercept.

• decay, 5

• decay, 1

• growth, 5

• growth, 1

Which of the graphs below represents y = 6(2)^x?

• 
• 
• 
• 

Suppose a culture of bacteria begins with 5000 cells and dies by 30% each year. Write an equation that represents this situation.

• y=5000(1 - 0.30)^x

• y=30(5000)^x

• y=5000(1 + 0.30)^x

• y=5000x^x

What is a, the starting term, for the function: f(x) = 300(1.16)^x?

• 300

• 1.16

• .16

• x