Applying and analysing exponential and logarithmic functions

What is the growth rate for the function: f(x) = 300(1.16)^x?

• 0.16

• 1.16

• 300

• x

What is "b", (the growth factor) for the function: f(x) = 300(1.16)^x?

• 300

• 1.16

• f(x)

• x

 $f\left(x\right)=2\left(5^{-x}\right)+4$  the function f is 

• exponential growth

• exponential decay

Give the rate of decay:
y = 35(0.65)^x

• 35%
• 65%
• .35%
• 165%

How do you know that this was exponential growth? $f\left(x\right)=3\ \left(\ \frac{5}{2}\right)^x$  

• Because the 3 was bigger than one

• Because the 5/2 was bigger than one

• Because the 3 was less than one

• Because the 5/2 was less than one

What values of b make an exponential growth function?

• b > 1

• b <1

• b < 0

What is the rate represented by the equation: y = (1.6)^x

• 60%

• 160%

• 40%

• 1.6%

$F\left(x\right)\ =\ a\left(1\ -\ r\right)^X$

• Rate will be a number greater than 1

• Exponential Growth

• Rate will be a number (decimal) less than 1

• Quad

What is the decay rate as a percentage? f(n)=9(0.96)ⁿ

DO NOT INCLUDE A PERCENT SIGN

Consider the exponential function  $f\left(x\right)=75\left(1.23\right)^x,$  which models Rita's savings account, where x represents the number of years since the money was invested. What is the rate of the growth or decay?

• -23%

• 23%

• 123%

• 223%