# Algebra 2 and Trig Textbook Final Exam

Choose your answer to the question and click 'Continue' to see how you did. Then click 'Next Question' to answer the next question. When you have completed the free practice test, click 'View Results' to see your results. Good luck!

#### Question 1 1. To find D sub y, which column of the coefficient matrix would you replace with the constant numbers?

#### Question 2 2. What is the standard base for logarithms?

#### Question 3 3. What is the first step to solving the equation |2x + 1| - 5 = 7?

#### Question 4 4. Which row would you multiply by -2 to help you find the inverse matrix?

#### Question 5 5. A tangent function has an amplitude (steepness) of 3, period of π, a transformation of π/2 to the right, and a transformation down 1. What is the equation for this trigonometric function?

#### Question 6 6. How many more equations are needed to complete this linear system with three variables?

#### Question 7 7. Prove sin (x + y) = 2 sin (x) cos (y) - sin (x - y).

#### Question 8 8. Which side of the equation do you work with when proving trigonometric equation identities?

#### Question 9 9. If the half life of carbon-14 is 5730 years, and you have a sample that has lost 80% of its carbon-14, how old is the sample?

#### Question 10 10. What is correct expression for the absolute value of the following number: 8?

#### Question 11 11. How many sum-to-product identities are there?

#### Question 12 12. If arc AB is 72 degrees, what is the measure of angle ACB?

#### Question 13 13. Find angle A.

####
Question 14
14.
Solve the system of equations below:

y = 3x - 5

y = -2x + 10

#### Question 15 15. Find the roots of the equation below:

#### Algebra 2 and Trig Textbook Final Free Practice Test Instructions

Choose your answer to the question and click 'Continue' to see how you did. Then click 'Next Question' to answer the next question. When you have completed the free practice test, click 'View Results' to see your results. Good luck!