Read and analyze each statement carefully, then write the letter with the correct answer on the blank before each number. 1. How will you classify 2x + 5x = 16? B. mathematical expression A. mathematical equation D. verbal expression C. mathematical inequality 2. Which is TRUE about an equation? A. An equation tells us that two expressions represent the same number. B. An equation is a mathematical statement that shows that an expression is less than or more than the other. C. An equation is expressed by symbols of inequality like Z, S, >, <, and . D. An equation is a mathematical statement composed of constants and variable + & -symbol. 3. Which DOES NOT belong to the group? A. 2x + y = 12 D.x > 20 + 2x B. 3x + 4y = 8 C. x + 5y > 8 4. What should be the value of x to make x + 4 = -16 TRUE? A.-10 D. -20 C. 20 B. 12 5. Which numbers will make the inequality y + 10 > 16 TRUE? A. 4 B.5 C.-5 D. 7 6. Which is a solution of the equation 8x 64? A.8 B.-8 C. 9 D. -9 7. What is the degree of a linear equation? A. 1 B. 2 C.3 D.4 8. Which DOES NOT belong to the group? A. > B. < C. D. = 9. Which of the following symbols means “is at least"? ov A.< B. C. * D. < 10. Which is a linear equation in one variable? A. 2x + 3y = 56 B. 2x + 5 = 18 C. 2mn + 45 = 0 D. 10 abc = 190a 11. What is the solution of x + 2 = 7? A. 5 B.-9 C. -9,5 D.-5 12. What is the solution of 5x = 15? A. 15 B. 10 C.3 D. -5 13. Which equations result to 5? A. 5(7-4) + 3 = 8 B. -5(y + 4) + 3 = 8 C. 5(y + 4) -3 = 8 D. 5(y - 4) +3 =- 14. Which elements of the replacement set {-8,-3, 5, 8} satisfies this equation, x + 5 = 13? A.-8 B.-3 C.5 D. 8 15. Which is NOT a solution to the inequality, x-355? A. -3 B. O C.5 D. 11 16. What is the solution of x + 9 = 18 - 2x? A. 2 B.3 C. 4 D. 5 17. Solve the linear inequality - 10x + 2 < - 18. EDAS A. x <2 B. x < -2 C. x > -2 D. x > 2 18. Which equation has x = 9 as a solution? A. 5x = 45 B. 2x = 20 C. x + 7 = 26 D. 4 + x = 12 19. What is m in the inequality 1+ < 6? A. m < 15 B. m < 8 C. m 2 8 D. m > 15 20. What is the value of a in the inequality 3(a -6) < 4+ a? A. a < 9 B. a < 12 C. a < 13 D. a < 11 21. Which graph below illustrates x < 1? A. B. C. + 22. What will be the values of y in the inequality ly-21 < 4? A. {y/6 >y<2} B. {y/6 >y> 2} C.{y/-2 <y <6} D. {y/-6<y> 2 m 3 A. at bb c. al 64 Į Į Del! -1 0 1 2 3 2 3
