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Overview of Linear Functions & Equations 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. Use Cramer's rule to find the z solution to this linear system.

Question 2 2. When using a matrix to solve a system of three variables in three equations, you replace the _____ of the coefficient matrix to solve for the y solution.

Question 3 3. What are the coordinates of the x-intercept of the equation 2x - 3y = 8?

Question 4 4. Which linear equation is shown below?

Question 5 5. In a linear inequality, what kind of line is used when graphing the inequality 3y<2x-7?

Page 2

Question 6 6. Solve the inequality -2x+8>10.

Question 7 7. Write an equation for the following linear function: Samantha works part-time at a shoe store. Each day she gets paid $30 plus $5 for each pair of shoes that she sells.

Question 8 8. Graph the following linear function: y = 2x + 4.

Question 9 9. Solve: x + 9 > 0

Question 10 10. Solve: 6 - 8x > -16x + 10

Page 3

Question 11 11. Which of the following is a solution to the system of equations shown in the graph below?

Question 12 12. Based on this graph, what is the solution to the system of equations?

Question 13 13. For the linear function h=2t-1, what is h when t=4?

Question 14 14. Is the equation y=x^2 linear? Why, or why not?

Question 15 15. A store is offering 15% off the price of sunglasses if you buy two pair. If the total cost of two pair, including the discount, is $30.60, then what is the original price of one pair?

Page 4

Question 16 16. Scott paddles a canoe upstream against the current in 4 hours, then returns downstream with the current in 1 hour. If the river flows at 3 miles per hour, then what would Scott's paddling speed be in calm water?

Question 17 17.

What is the determinant of the coefficient matrix of this linear system?

2x + 2y = 10

3x - 2y = 0

Question 18 18.

Find the y solution of this system using Cramer's rule.

2x + 2y = 10

3x - 2y = 0

Question 19 19. What is the slope of a line that is perpendicular to y = 3x + 1?

Question 20 20. What is the equation of a line that is parallel to y = -4x + 2 and goes through the point (-4, 9)?

Page 5

Question 21 21. Solve for x: x - 10 = 3

Question 22 22. Solve for x: 4(x - 3) = -4

Question 23 23. What is the determinant of the coefficient matrix for this linear system?

Question 24 24. What is the equation of the graph below?

Question 25 25. For linear inequalities, when does the inequality symbol flip?

Page 6

Question 26 26. Identify the equation for the linear function represented by this graph:

Question 27 27. Solve: 5x - 8 ≤ 6 - 2x

Question 28 28. Which graph does NOT represent a system of equations?

Question 29 29. Is y=2x+D-10 linear if given that D=4?

Question 30 30. Ten less than half a number is 76. What is the number?

Overview of Linear Functions & Equations 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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