Quiz, Exponential Functions S23

What is the initial value of f(x)= a⋅b^x

• x

• b

• a

• f(x)

What represents Growth/Decay on f(x)=a⋅b^x ?

• x

• a

• b

• Idk

What is the y-intercept on f(x)=a⋅b^x ?

• x

• a

• b

• Idk

What is the y-intercept of the function?

• 1

• 2

• 4

• 3

Write an equation that models the following situation:

The current student count at John Jay is 6500, it is expected to grow at a rate of 14% next year.

• y= 6500(1+.14)^x

• y= 6500(1-.14)^x

• y= 6500(14)^x

• y= 14(6500)^x

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

• Exponential Growth

• Linear Function

• Exponential Decay

• Quadratic Function

Which of the followings functions shows an initial amout of $15 and an increase of 35% ?

• y=15(35)^x

• y=15(1.35)^x

• y=15(0.35)^x

• y=35(15)^x

Identify the y-intercept (initial value) in the function

f(x)= 13(.27)^x

• (.27)^x

• .27

• 13

• 1+.27

What is the y-intercept of the function f(x)=2(4)^x ?

• 2

• 4

• (4)^x

• 8

What is the Growth/Decay factor of the function f(x)= 2(4)^x ?

• 2

• 8

• 4

• x