Exponentials & Logs Chapter Exam

Exam Instructions:

Choose your answers to the questions and click 'Next' to see the next set of questions. You can skip questions if you would like and come back to them later with the yellow "Go To First Skipped Question" button. When you have completed the practice exam, a green submit button will appear. Click it to see your results. Good luck!

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Question 1 1. Which of these equations correctly represents the following scenario: In her prime, 40 million people knew who Britney Spears was, but that number has been decreasing by 10% each year. So, since 90% of people still recognize her each year, how many people still know who Britney is each year?

Question 2 2. Which pattern of numbers is exponential?

Question 3 3. Which of the following is an exponential function?

Question 4 4. Simplify using ONLY positive exponents.

Question 5 5. Which of the following is equivalent to the expression below?

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Question 6 6. Expand the following logarithm:

Question 7 7. Simplify using ONLY positive exponents.

Question 8 8. Simplify using only positive exponents.

Question 9 9. Evaluate the logarithm below:

Question 10 10. Which of the following would require the use of the 'power to a power' rule for exponents?

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Question 11 11. Simplify the following expression.

Question 12 12. Solve the following equation for x.

Question 13 13. Which of the following equations represents an exponential decay?

Question 14 14. If f(x) = abx, f(2) = 480 and f(5) = 30,720, then a = _____.

Question 15 15. Condense the logarithm below:

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Question 16 16. Simplify the expression below.

Question 17 17. A colony of bacteria starts with 9 bacteria at noon. If the number of bacteria triples every 20 minutes, how many bacteria will be present at 2:40 pm that afternoon?

Question 18 18. Every year a laptop is worth 1/3 of what it was worth for each year previous. If you have a $600 laptop, how much is it worth after 15 years?

Question 19 19. Which equation represents a pattern that starts at 6 and is multiplied by 4 each step?

Question 20 20. Which logarithmic property is shown below?

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Question 21 21. Use the following information to answer the question.

Question 22 22. Simplify the following expression.

Question 23 23. Which of the following is equivalent to the expression below?

Question 24 24. What does the quotient property of logarithms tell us to do?

Question 25 25. Evaluate the logarithm below:

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Question 26 26. Which of the following is equivalent to the expression below?

Exponentials & Logs Chapter Exam Instructions

Choose your answers to the questions and click 'Next' to see the next set of questions. You can skip questions if you would like and come back to them later with the yellow "Go To First Skipped Question" button. When you have completed the practice exam, a green submit button will appear. Click it to see your results. Good luck!

TExES Mathematics 7-12 (235): Practice & Study Guide  /  Math Courses
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