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SAGUCAN NATIONAL HIGH SCHOOL FIRST PERIODICAL EXAMINATION MATHEMATICS – 9 Name: _________________________________ Yr/Sec.:___________________ Date: ____________ Score: ___________ Direction : Choose the letter of the correct answer. Write it on the space provided before the number. Knowledge ___1. It is an equation contains a polynomial of degree 2. a. Quadratic equation b. Linear equation c. Quadratic inequality d. Linear Inequality ___2. In the equation s 2 + 5s – 4 = 0, what is the value of a, b, and c? a = 2, b = 5, c = 4 b. a = 1, b = 5, c = - 4 c. a = 1, b = 5, c = 4 d. a = 1, b = - 5, c = - 4 ___3. In the equation 2r 2 + 4r – 1 = 0, what is the quadratic term? a. r 2 b. 2r 2 c. 4r d. – 1 ___4. In the equation x(x + 4) – 10x + 24 = 3x, what is the value of b? a. 9 b. – 9 c. 1 d. 24 ___5. What is the factor of the polynomial x 2 – 10x + 21? a. (x – 3)(x – 7) b. (x – 3)(x + 7) c. (x +3)(x – 7) d. (x + 3)(x+7) ___6. What is the first step in solving quadratic equation by factoring? a. Factor the given quadratic equation b. Transform the quadratic equation if necessary c. Apply the zero product property d. None of the above 7-9 Find the square root of the following number. ___7. 144 a. 12 b. 13 c. 24 d. 16 ___8. 0.36 a. 0.6 b. 6 c. 16 d. 9 ___9. 25 2 a. 25 b. 5 c. 50 d. 625 10-11 Find the value of the unknown variable of the following: ___10. 3 = 3 + 4 – y a. Y = 8 b. Y = 6 c. Y = 9 d. Y = 4 ___11. 3x = 2x(3 – 9) + 20 a. X = 4/3 b. X = 3/4 c. X = 20 d. X = 3 ___12. How many roots are there in the equation x 2 = k if k is greater than 0? a. 1 b. 2 c. 3 d. None ___13. How many solutions are there in the equation x 2 = k if k is less than 0? a. 1 b. 2 c. 3 d. None ___14. What is the quadratic formula that can also be used in solving quadratic equations? a. x = b 2 4 ac 2 a b. x = b 2 4 ac 2 a c .x= b 2 +4 ac 2 a d. x= b 2 +4 ac 2 a ___15. These are the numbers multiplied together to get a certain number. a. Factors b. quadratic c. linear d. constant ___16. Which of the following numbers is irrational number? a. 7/8 b. ½ c. 3 d. 2 ___17. All are perfect square number except. a. 12 b. 121 d. 16 d. 4

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SAGUCAN NATIONAL HIGH SCHOOLFIRST PERIODICAL EXAMINATIONMATHEMATICS 9

Name: _________________________________ Yr/Sec.:___________________ Date: ____________ Score: ___________Direction : Choose the letter of the correct answer. Write it on the space provided before the number. Knowledge___1. It is an equation contains a polynomial of degree 2.a. Quadratic equationb. Linear equationc. Quadratic inequality d. Linear Inequality___2. In the equation s2 + 5s 4 = 0, what is the value of a, b, and c?a = 2, b = 5, c = 4 b. a = 1, b = 5, c = - 4 c. a = 1, b = 5, c = 4 d. a = 1, b = - 5, c = - 4 ___3. In the equation 2r2 + 4r 1 = 0, what is the quadratic term? a. r2 b. 2r2c. 4rd. 1 ___4. In the equation x(x + 4) 10x + 24 = 3x, what is the value of b? a. 9 b. 9 c. 1d. 24___5. What is the factor of the polynomial x2 10x + 21?a. (x 3)(x 7)b. (x 3)(x + 7)c. (x +3)(x 7)d. (x + 3)(x+7)___6. What is the first step in solving quadratic equation by factoring?a. Factor the given quadratic equationb. Transform the quadratic equation if necessaryc. Apply the zero product propertyd. None of the above7-9 Find the square root of the following number.___7. a. 12b. 13c. 24d. 16___8. a. 0.6b. 6c. 16d. 9___9. a. 25b. 5c. 50d. 62510-11 Find the value of the unknown variable of the following:___10. 3 = 3 + 4 ya. Y = 8b. Y = 6c. Y = 9 d. Y = 4___11. 3x = 2x(3 9) + 20a. X = 4/3b. X = 3/4c. X = 20d. X = 3___12. How many roots are there in the equation x2 = k if k is greater than 0?a. 1b. 2c. 3d. None___13. How many solutions are there in the equation x2 = k if k is less than 0?a. 1b. 2c. 3d. None___14. What is the quadratic formula that can also be used in solving quadratic equations?a. x = b. x = c d. x= ___15. These are the numbers multiplied together to get a certain number.a. Factorsb. quadraticc. lineard. constant___16. Which of the following numbers is irrational number? a. 7/8b. c. 3d. ___17. All are perfect square number except.a. 12b. 121d. 16d. 4___18. The following numbers are real numbers except. a. b. c. d. ___19. What method of solving quadratic equation which is more appropriate to solve x2 = 25? a. factoring b. extracting square root c. completing the square d. using the quadratic formula___20. How many roots are there in the equation x2 = k if k is equal to 0?a. 1b. 2c. 3d. None___21. It is the method of solving quadratic equation by transforming the equation into the form of (x-h)2 = k. a. factoring b. extracting square root c. completing the square d. using the quadratic formula___22. What is the standard form of a quadratic equation?a. ax2+bx+c=0b. (x-h)2=0c. x2 = 0d. ax+bx+c=0___23. What is the last term of this expression x2 + 2x + ____ to make it a perfect square trinomial?a. 1b. 2c. 3d. 5___24. What is the sum of the roots of the quadratic equation x2 + 6x 14 = 0?a. 1b. 6c. -14d. 0___25. What is the value of k in this equation x2+4 = 4a. 0b. 1c. 2d. 3

Process ___26. Which of the following is a quadratic equation?a. 2r2 + 4r - 1b. 3t 7 = 2c. s2 + 5s 4 = 0d. 2x2 7x 3___27.. Write 3x(x-2) = 10 into standard quadratic equation form.a. 3x(x-2) + 10 = 0b. 3x2 6x 10 = 0 c. 3x2 6x = 10d. 3x2 6x + 10 = 0 28-30. Solve the following quadratic equations by factoring. Show your solution in a separate sheet.___28. y2 + 5y 24 = 0a. y = - 8, 3b. y = -2,5c. y = -6,2d. y = -8,5___29.x2 + 10x + 25 = 0 a. x = -5b. x = -4c. x = -3d. x = -9___30. t2 + 2t + 1 = 0a. t = 1b. t = -1c. t = 2d. t = -231-33. Solve the following quadratic equation by extracting square root. Show your solution in a separate sheet.___31. h2 25 = 0a. h=5,-5b. h= 6,-6c. h=4,-4d. y=3,-3___32. 2x2 = 18a. x=3,-3b. y=9,-9c. x=18,-18d. x=2,-2___33. t2 = 0a. 0b. nonec. td. 234-36. Solve the following quadratic equation by completing the square. Show your solution in a separate sheet.___34. x2 15 + 2x + 4 = 6-2a. x=7,-9b. x=8,--3c. x=3,-5d. x=7,-2___35. x2 -2x = 3a. x=3,-1b. x=1,-3c. x=1, -1d. x=6,-2___36. 2x2 + 8x 10 = 0a. x=1,-5b. x=-1,5c. x= 1,-1d. x=-5,537-39. Solve the following equation by using the quadratic formula. Show your solution in a separate sheet.___37. x2 + 10x + 9 = 0a. x=-9,-1b. x=9,1c. x=10,-1 d. x=1,19___38. y2 + 2y 15 = 0a. y = - 8, 9b. y = - 4, 2c. Y = - 5, 3d. Y = - 2, 8___39. x2 + 15 + 10 10x + x = xa. 3b. 5c. 2d. 6

ss5 cm5 cmA = 256___ 40. What mathematical expression the side of the square represent?a. s = 5b. s 5c. (s +5)(s+5)d. 5 ___41. What is the quadratic equation that represents the area of the figure?a. s2 + 10s 231 = 0b. s2 10s 231 = 0c. s2 + 10s + 231 = 0d. s2 10s + 231 = 0___42. What is the value of s in the figure?a. 11b. 5c. -21d. 21

Understanding___ 43. Differentiate linear equation and quadratic equation.a. Linear equation is of degree 2 while quadratic equation is of degree 1b. Quadratic equation is of degree 2 while linear equation is of degree 1c. Linear has one variable while quadratic has 2 variablesd. None of the above___44. Which of the following quadratic equations may be solved more appropriately by factoring?a. 2x2 = 72b. t2 + 12t + 36 = 0 c. w2 = 64d. 2h2 = 25___45. Sheryl says that the solutions of the quadratic equations w2 = 49 and w2 + 49 = 0 are the same. Do you agree with Sheryl? Why?a. No, because the first equation has real roots while the latter has no real roots. b. No, because both equations have no real roots.c. Yes, because the value of k are the same for the both of the equationsd. Yes, because the square root of 49 is 7. ___46. How are you going to get the last term to make an expression a perfect square trinomial?a. squared the half of the value of bb. divide b to halfc. divide all numerical coefficient by the value of ad. none of the above___47. If the product of two real numbers is zero, then either of the two is equal to zero or both numbers are equal to zeroa. always trueb. sometimes truec. sometimes falsed. always false48 50 Write YES if the statement illustrate quadratic equation and NO if not.___48. The length of the swimming pool is 8m longer than its width and the area is 105 m2.___49. Edna paid at least 1,200 Php for a pair of pants and a blouse. The cost of the pair of pants is 600 Php more than the cost of the blouse.___50. A reality developer sells residential lots for 4,000 Php per square meter plus a processing fee of 25,000 Php. One of the lots the reality developer is selling is 652,000 Php.

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