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- 1. Multiple-choice30 seconds1 pt
What is the initial value of the situation represented by f(x)=0.05(2)

^{x}?0.05

2

0.1

1

- 2. Multiple-choice30 seconds1 pt
What is the growth factor of the situation represented by f(x)=10(0.3)

^{x}?10

0.3

1

3

- 3. Multiple-choice30 seconds1 pt
Which variable represents time passed in the function y=ab

^{x}?y

a

b

x

- 4. Multiple-choice5 minutes1 ptWrite an equation that models the following situation:

Samantha's hair was known to grow very rapidly. It began at a length of 6 in and grew at a rate of 14% a week.y=6(0.14)^{x}y=6(1+14)^{x}y=6(1.14)^{x}y=6(0.86)^{x} - 5. Multiple-choice1 minute1 ptWhich of the following functions shows an initial amount of $15 and an increase of 35% each year?y = 15(35)
^{x}y = 15(1.35)^{x}y = 15(0.35)^{x}y = 35(1.15)^{x} - 6. Multiple-choice2 minutes1 ptA new savings account is opened with $400 and gains 3% every year. What is the exponential function?f(x)=400(1+3)
^{x}f(x)=400(1-0.03)^{x}f(x)=400(1+0.03)^{x}f(x)=400(0.03)^{x} - 7. Multiple-choice5 minutes1 ptThe amount of ants in a colony, f, that is decaying can be modeled by f(x) = 800(.87)
^{x}, where x is the number of days since the decay started. By what percentage is the colony decaying?87%13%800%8.7% - 8. Multiple-choice5 minutes1 ptA collectible car has been going up in price by 10% each year. If the car is already worth $29,000, how much will the car be worth in 5 years?$0.29$2,900,000,000$46,704.79$145,000
- 9. Multiple-choice5 minutes1 pt
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} - 10. Multiple-choice5 minutes1 pt
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}