# On Core Mathematics Algebra 1 Unit 3: Systems of Equations and Inequalities Chapter Exam

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### Page 1

#### Question 1 1. A system of equations has how many equations?

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Question 2
2.
Is the set of values *r* = 3, *s* = 7, and *t* = 1 a solution to the following system of linear equations?

#### Question 3 3. Solve: -9x > -81

#### Question 4 4. Solve: x + 9 > 0

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Question 5
5.
At the grocery store, you buy three apples and five oranges for a total of $6.50. Your friend buys seven apples and two oranges for a total of $5.50. If *a* represents the cost of one apple, and *o* represents the cost of one orange, which of the following systems of linear equations can be used to find the cost of one apple and the cost of one orange?

### Page 2

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Question 6
6.
Which side of the line is shaded in the inequality y<2*x*-3?

#### Question 7 7. Which of the following statements are FALSE?

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Question 8
8.
Solve for y.

y = 2x - 1

x + y = 8

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Question 9
9.
Solve for x.

y = 2x - 1

x + y = 8

#### Question 10 10. For linear inequalities, when does the inequality symbol flip?

### Page 3

#### Question 11 11. Which of the following sets of values is a solution to the following system of linear equations?

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Question 12
12.
Solve.

x = 3y

x + y = 80

#### Question 13 13. Solve: 5x - 8 ≤ 6 - 2x

#### Question 14 14. Solve: 2x + 7 < 5x +19

#### Question 15 15. Solve the inequality -2x+8>10.

### Page 4

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Question 16
16.
In a linear inequality, what kind of line is used when graphing the inequality 3*y*<2*x*-7?

#### Question 17 17. Solve: 6 - 8x > -16x + 10

#### Question 18 18. Which of the following equations are linear equations?

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Question 19
19.
Solve.

x = y + 3

2x = 3y - 5

#### Question 20 20. When graphing the inequality ''x is greater than or equal to -5,'' what kind of circle do you use?

#### On Core Mathematics Algebra 1 Unit 3: Systems of Equations and Inequalities 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!