Review worksheet for a unit test ( 15 questions )

Anonymous
timer Asked: Dec 14th, 2017
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Question description

No work needed to be shown for 1-10 but, the rest require work to be shown. Please message me if you have any questions about the worksheet, I had to transfer it over to word doc. so everything may not be perfect you also do not have to write replies on same document, a blank one with the answers would be preferred. Thank you in advance!!

1. Which graph best represents y = 4x – 1? (1 point) 2. Some investments in the stock market have earned 10% annually. At this rate, earnings can be found using the formula A = P(1.10)n , where A is the total value of the investment, P is the initial value of the investment, and n is the number of years the money is invested. If $2,500 is invested in the stock market at this annual rate of return, what is the expected total value after 18 years? (1 point) A. B. C. D. $49,500.00 $46,750.00 $13,899.79 $12,636.18 3. Graph the logarithmic function. y = log(x – 3) 5. What is the value of log648? (1 point) 6. Solve the exponential equation. 1258x–2 = 150 (1 point) A . –0.1203 b. 0.3797 c. 0.3705 d. 2.1297 7. Solve log(2x + 3) = 3. (1 point) 8. What is the percent rate of change in function y = (0.99)x? Determine whether the function represents exponential growth or exponential decay. (1 point) a. 1%; exponential growth b. 1%; exponential decay c. 10%; exponential growth d. 0.1%; exponential decay 9. Use natural logarithms to solve the equation. Round to the nearest thousandth. 3e 2x+ 2 = 28 (1 point) a. 1.0797 b. 0.4689 c. 0.9261 d. 2.1595 10. Write the expression as a single logarithm. 5logby + 6logbx (1 point) a. b. c. d. logb(yx5 + 6) (5 + 6)logb(y + x) logb(y5+ x6) logb(y5x6) 11. Note: Remember to show all of the steps that you use to solve the problem. You can use the comments field to explain your work. Your teacher will review each step of your response to ensure you receive proper credit for your answer. The exponential decay graph shows the expected depreciation for a new boat, selling for $3500, over 10 years. Write an exponential function for the graph. Use the function to find the value of the boat after 9.5 years. 12. Note: Remember to show all of the steps that you use to solve the problem. You can use the comments field to explain your work. Your teacher will review each step of your response to ensure you receive proper credit for your answer. Write the equation in logarithmic form. 125^ 4/3= 625 13. Note: Remember to show all of the steps that you use to solve the problem. You can use the comments field to explain your work. Your teacher will review each step of your response to ensure you receive proper credit for your answer. Solve ln 2 + ln x = 5. Round to the nearest thousandth, if necessary 14. Note: Remember to show all of the steps that you use to solve the problem. You can use the comments field to explain your work. Your teacher will review each step of your response to ensure you receive proper credit for your answer. In a particular region of a national park, there are currently 330 deer, and the population is increasing at an annual rate of 11%. a. Write an exponential function to model the deer population in terms of the number of years from now. b. Explain what each value in the model represents. c. Predict the number of deer that will be in the region after five years. Show your work. 15 . In the equation y = ab(x – h) + k, how does the value of k affect the graph? (

Tutor Answer

vmohanakumar
School: Purdue University

Attached.

1. Pick the graph that looks like:

2. C. $13,899.79
3.

4.
5.
6.
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9.
10.
11.

Not showing
2.8116
B. 0.3797
498.5
C. 10%; exponential growth
a. 1.0797
d. logb(y5 x6 )
The exponential decay graph shows the exp...

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Review

Anonymous
Outstanding Job!!!!

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