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- 1. Multiple ChoiceIdentify the y-intercept (initial value) in the function f(x)=13(.27)x(.27)x.27133.51
- 2. Multiple ChoiceIdentify the common ratio (multiplier) of the function f(x)=2(4)x.24(2)x8
- 3. Multiple Choice
Is the pictured graph growth, decay, or linear or none?GrowthDecayLinearNone - 4. Multiple ChoiceWhat type of function is f(x)=2(1/7)x ?Exponential GrowthLinearExponential DecayNone of the Abovee
- 5. Multiple ChoiceIs the equation linear, exponential or neither?LinearExponentialNeither
- 6. Multiple ChoiceSuppose a culture of bacteria begins with 5000 cells and dies by 30% each year. Write an equation that represents this situation.y=5000(0.7)xy=30(5000)xy=5000(1.3)xy=5000xx
- 7. Multiple ChoiceThe half-life of Zn-71 is 2.4 minutes. If one had 100.0 g at the beginning, how many grams would be left after 7.2 minutes has elapsed?11.5 grams12.5 grams13.5 grams14.5 grams
- 8. Multiple ChoiceWhat is the balance of a $4500 bond that earns 6.5% interest when compounded annually after 3 years?$5435.77$5400$5377.50$5300
- 9. Multiple ChoiceWrite 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)xy=6(1+14)xy=6(1.14)xy=6(0.86)x - 10. Multiple ChoiceA population of fish starts at 8,000 and decreases by 6% per year. What is the initial value?6%8,0000.60.06
- 11. Multiple ChoiceIdentify each function as representing exponential growth or decay.
f(x) = 4(0.89)xgrowthdecay - 12. Multiple ChoiceState the domain of the exponential function.x<0x>0all real numbersnone of these
- 13. Multiple ChoiceState the range of the exponential function.y<0y>0all real numbersnone of these
- 14. Multiple ChoiceState the domain of the exponential function.y<0all real numbersx>0x<0
- 15. Multiple ChoiceState the range of the exponential function.y<0y>0x>0x<0
- 16. Multiple ChoiceState the range of the exponential function.y<-2y>-2x>0all real numbers
- 17. Multiple ChoiceCreate a function for the pictured table.f(x)=27(3)xf(x)=1/3(27)xf(x)=3(27)xf(x)=27(1/3)x
- 18. Multiple ChoiceIdentify the growth rate of the equation: f(x)=2(1.45)x.145%45%55%
- 19. Multiple ChoiceYou have $10 in you bank account. It doubles every month. How much money will you have after 5 months?$50$35$320$250
- 20. Multiple ChoiceWhat is b, the common ratio, for the function: f(x) = 800(0.85)x?8000.850.15x
- 21. Multiple ChoiceWhat function type models this graph?Exponential GrowthExponential DecayLinearNone of the above
- 22. Multiple ChoiceWhat is the horizontal asymptote of the graph?y=2(2)xy=0x = 0(0,2)
- 23. Multiple Choicex y
0 4
1 7
2 10x y
0 5
1 7
2 13 - 24. Multiple ChoiceWhat is the average rate of change of y = 2(3)x at [2, 4]?72336.8630
- 25. Multiple ChoiceWhat is the average rate of change from x=-1 and x=0?-2-1/221/2
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