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FTCE Mathematics 6-12 (026): Practice & Study Guide  /  Math Courses

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FTCE Math: Matrix Operations & Determinants 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!

Page 1

Question 1 1. Multiply the fourth row by 3.

Question 2 2. What is the number in the second row and third column in the answer matrix?

Question 3 3. Which of the following is the inverse of this matrix?

Question 4 4. If you switch rows two and three, what will be the new second row?

Question 5 5. If the inverse of matrix A is this, what is the solution when the constants are 10 and 13?

Page 2

Question 6 6. When you multiply matrices, if the first matrix is a 4x3 matrix, which of the following matrices can we multiply with the first?

Question 7 7. What of these symbols is commonly used to enclose a matrix?

Question 8 8. A matrix B multiplied by its identity matrix is equal to what?

Question 9 9. How many rows would a matrix that represents a system of 5 variables and 3 equations have?

Question 10 10. Add the following matrices:

Page 3

Question 11 11. A matrix multiplied by its inverse is equal to what?

Question 12 12. What kinds of brackets are used in proper matrix notation?

Question 13 13. What size is the following matrix?

Question 14 14. What is the number in the first row and first column in the answer matrix?

Question 15 15. Which row would you multiply by -2 to help you find the inverse matrix?

Page 4

Question 16 16. Which of these statements is not true?

Question 17 17. If you switch the first row with the fourth row, what will the new first row be?

Question 18 18. Which matrix will you get when you multiply a matrix with its inverse?

Question 19 19. Which number needs to be changed to find the inverse of this matrix?

Question 20 20. Which of the following is not a valid matrix operation?

Page 5

Question 21 21. Multiply the first row by -3 and add it to the second row.

Question 22 22. Which system of equations is represented by the following matrix? (Think of the vertical line as the equal sign.)

Question 23 23. The identity matrix can be likened to what number?

Question 24 24. For the problem Mx = h where M is a matrix, x is the variable matrix, and h is the answer or constants matrix, how would you solve the problem if you were given the inverse of matrix M?

Question 25 25. Find the determinant of the following matrix.

Page 6

Question 26 26. Which of the following is the new row that results when you add rows 1 and 3?

Question 27 27. Find the determinant of the following matrix.

Question 28 28. Which choice below could be a possible answer to the determinant of a matrix?

Question 29 29. Subtract the following matrices:

Question 30 30. Which of the following would be a square matrix?

FTCE Math: Matrix Operations & Determinants 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!

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