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Mathematics
9th -
10thgrade
Key Features of Exponential Functions
23 questions
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- 1. Multiple ChoiceWhat is the range of this graph?y = 6(0, -4)y > -6y < -6
- 2. Multiple Choice
What is the range of this function?
-∞< y < 0
0< y <∞
-∞< y <4
4< y <∞
- 3. Multiple ChoiceGiven y=3x determine the y-intercept(0,1)(0,3)
- 4. Multiple ChoiceIdentify the y-intercept (initial value) in the function f(x)=13(.27)x(.27)x.27133.51
- 5. Multiple ChoiceIdentify the y-intercept (initial value) of the function f(x)=2(4)x.24(2)x8
- 6. Multiple Choice
Identify the factor of the function f(x)=2(4)x.
2
4
(2)x
8
- 7. Multiple ChoiceIdentify the y-intercept (initial value) of the function f(x)=2(4)x.24(2)x8
- 8. Multiple ChoiceGiven the function, f(x) = 6.5(0.85)x, identify the initial value.6.50.85xf(x)
- 9. Multiple Choice
Given the function, f(x) = 6.5(0.85)x, identify the growth/decay factor.
6.5
0.85
x
f(x)
- 10. Multiple ChoiceWhat is the y-intercept of the function?231-2
- 11. Multiple ChoiceSuppose you deposit $3000 in a savings account that pays interest at an annual rate of 4%. What is the initial value?4%40%$3000(1.04)$3000
- 12. Multiple Choice
Suppose you deposit $3000 in a savings account that pays interest at an annual rate of 4%. What is the factor?
.4
.96
.04
1.04
- 13. Multiple ChoiceThe population of Winnemucca, Nevada, can be modeled by P=6191(1.04)t where t is the number of years since 1990. What percent did the population increase each year?4%It doesn't sayI don't know400%
- 14. Multiple Choice
What is r, the decay rate, for the function: f(x) = 800(0.85)x?
800
0.85
0.15
x
- 15. Multiple ChoiceThe student council makes an initial investment in a savings account that earns interest. The value of the savings account after m months is determined by the function v(m) = 2,000(1.005)m. What is the interest rate of the savings account?2,0001.005.005.5%
- 16. Multiple ChoiceWhat is a, the initial amount, for the function: f(x) = 800(0.85)x?8000.850.15680
- 17. Multiple ChoiceYour shiny new boat cost $7650. The depreciation for your boat is 14% per year. Estimate the value of your vehicle in 3 years. What is the rate of change, the B variable?0.14141.14.86
- 18. Multiple ChoiceIn an exponential function, what does the 'a' represent?SLOPERATE OF CHANGEY-INTERCEPTCOMMON RATIO
- 19. Multiple ChoiceWhat is the growth factor of f(x) = 4(3)x431x
- 20. Multiple ChoiceWhat is a, the initial value, for the function: f(x) = 300(1.16)x?3001.16.16x
- 21. Multiple ChoiceIf the value B is greater than 1, what type of exponential function is represented?decaygrowth
- 22. Multiple Choice
What is the factor?
5
1/3
x
y
- 23. Multiple ChoiceWhat is the y-intercept?51/3x
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