Exponent Growth Decay

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

• Rate of growth or decay

• Growth or Decay factor

• Initial value

• Exponent

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

• 0.08

• 0.92

• 1.08

• 8

What are two points on the graph of y = 5(3)^x?

• (0, 3) and (1, 15)

• (0, 5) and (1, 15)

• (0, 3) and (1, 5)

• (0, 5) and (1, 3)

What is the y-intercept of the function?

• 2

• 3

• 1

• -2

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?

• 
• 
• 
• 

Determine the value of the decay rate for the function y = 56(0.45)^x?

• 0.55

• 0.45

• 1.45

• 1.55

The horizontal asymptote of y = 3(2)^x is:

• the y-axis

• the x-axis

• y = x

• There is no asymptote

In the exponential function, what does b represent?

• growth/decay factor

• initial value

• number of times something occurs

• function

• this represents an exponential decay

• my initial value is 5

• my decay factor is 0.88

• when graphed, the function will be decreasing