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Norte 1 kasalu ROQUE NA Camarines 9 SAN Mercedes, MATHEMATICS AS QUIZ SY: $2020-2021$ akatawa ng anc NAME: YEAR & $sECT1ON$ SCORE: PARENT $s1GNAT∪RE:$ wang t. I Direction: Encircle the letter that corresponds to the best answer. 1. It is a polynomial equations of degree two that can be written in the form ax² + bx + c 0 where a, b,c amah are real numbers anda 0. A. Quadratic Inequality C. Quadratic Function ving B. Quadratic Equation D. Linear Equation inup 2. Which is the linear term in the equation of x² - 2x - 15 = 0? hind A.x B. 2x C.-15 D.-2x at u 3. Which of the following is a quadratic equation? A. 2x(x – 3) = 15 C. x3 + 5x + 10 = 0 B. 3m + 8 = 15 D. (n – 2)(m – 2) = 0 4. The following are methods in solving quadratic equations, which one can be used to solve x = 6 + 3? ct A. Extracting square roots C. Completing the square B. Factoring D. Quadratic Formula 5. Which is the solution set given by the equation b2 – 16 = A.-2 and 8 C. 4 and - B. 1 and – 16 D.-8 and 0k? , 6. How many real solutions do we have in the equation x2 %3D if k r= oo0t? . A. Has two real solution or roots. C. Has no real solution or B. Has one real solution or root. D. Cannot be determined 7. Solve: (x + 2)² = 25 A. 5 and 2 B. 6 and 3 4 $C.-7and3$ $2$ D. $-6and4$ 8. What is the solution of the equation a 9. A. ± B. I3 4 $c.±\sqrt{\dfrac {2} {9}} $ $2$ $\sqrt{9} $ $productoftw0$ numbers $iszer0,th$ 9. What property of equality refers to the statement " If the then either of the two is equal to zero or both numbers are equal to zero"? A. Addition property of equality $c.ZeroProduc$ $D.Zer0andNe$ $Pr0perty$ B. Subtraction property of equality Negative $Exp0nen$ 10. Which of the following are factors of the polynomial x2 + $2x=157$ $A.\left(x-3\right)\left(x+5\right)$ $B.\left(x-1\right)\left(x-8\right)$ CD. . $\left(x+1\right)\left(x+8\right)$ $\left(x+3\right)\left(x-5\right)$ 1. What values of xwould make the equation $\left(x+2\right)\left(x+3\right)=12$ $true7$ to mu $A.-2and-3$ C.-1 and 6 3 D.-6 and 1 B. 2 and Some quadratic equations can be solved easily by factoring. To solve such quadratic equations, the Following are procedures except A. Transform the quadratic equation into standard form if necessary. B. Divide the numerical coefficient of the middle term by two then square the quotient. C. Factor the quadratic equation. D. Apply the zero product property by setting each factor of the quadratic expression equal to zera find the solutions of $x^{2}+9x=-8$ by factoring, which of the following procedures is first to be plied? A. Check the values of the variable obtained by substituting each to the original equation. B. Solve each resulting equation. C. Transform the equation to standard $formax^{2}+bx+c=0$ D. Equate both the factors to zero.
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Department of Education PASIG Division Region of Pampanga NATIONAL HIGH SCHOOL Candaba SUMMATIVE TEST IN MATHEMATICS 9 Name: (1" Quarter) Teacher Section: Score: Date: LEach item requires you answer or solve a problem. Write the letter of your answer on your answer sheet. (30 irems) 1. It is the value of the expression b-4ac in the quadratic formula a. discriminant b. roots C. solutions d. quadratic inequalities 2.A mathematical sentence in which the value of the left side of the mathematical sentence is equal on the right side of the mathematical sentence. a. roots b. equation 3. It is a polynomial equation of degree two c. inequality d. quadratic equations that can be written in the form ax + bx +c0, where a, b and care real numbers and a 0. a. Linear Equation b. Linear Inequality c. Quadratic Equation d. Quadratic inequality 4. Which of the following is a quadratic equation? a. 2x + 4x - 1 b. 3y -2 -8 c. 2x-92 3 d. x+ 5x-40 5. In the quadratic equation 2x+ 8x - 6 = 0, a. 2x b. x $n$ $nbtbe9$ $3drotc$ $8x$ $aatlonx2+5x+7=0$ $2$ term? h-a3 v6 e? 6. How many real roots does the quadratic equation a. 0 b. 1 7. What is the nature of the roots of the quadratic equation if the value of its discriminant a. The roots are not real. b. The roots are irrational and not equal. cT. Thhe e d. rrooootts s are rational and neoqit s ezualqe. roua? l. are rational and 8. The roots of a quadratic equation are -5 and 3. Which of the following quadratic equations roots? 15 = 0 $b.x^{2}+8x+15=0$ $cx^{2}-2x-15=0$ $dx^{2}+2x-15=0$ 9. $h3s$ $csero$ $x^{2}$ $8x+1$ $mt\bar{n} otme$ $a2x^{2}$ $+4x=3$ following quadratic equations b. x-8x-4=0 c. h3axs -n2x o r-ea5 l roots? 10. Which of the following mathematical statements is a quadratic 11. One of the roots of b2. x 7x-+1123<x 0 $c3x^{2}+7x-2\geq 0$ inequality? $a.2x^{2}$ $-3x-5=0$ roddodt. ? . . - x5+/22 x8+x+x1+57==0 0 $13x+20=0ls4.mmatstncothc$ a. - % b. -5/2 C. % 12. What are the roots of the quadratic equation $x^{2}+x-56=07$ $8and7$ a. 2 and -1 b. 8 and -7 13. W- h7 at is the sum a. obf t. he -6 roots of the quadratic equation $d.33nd-2$ $x2+6x-14=07$ $d.14$ C.-3 14. Which of the following quadratic equations 4cxa-in t9s -bwe 0 idth area $a.x^{2}+7x+12=0$ $b.2x^{2}+7x-3=0$ C. solve aned astilhe y dby . 3exx+tirs 2a1cx-4 t8im=ng 0 ?. sqHuoaw re lronog otiss ? 15. The length of a garden is 5 meter longer than the garden? a. 9 m b. 7 m 16. What is the standard form of a quadratic ce. q5 uam tion? d. 2 m a. ax = 0 $cax+bx+c=0$ $d.ax^{2}+bx+c=0$ 17. What is the $b.ax+α=0$ $aloeotclntheeq$ equation x-2x 0? a. 0 b. 1 C.2 d. 3 18. Which of the following coordinates of points belong to the $solatonsetotthe$ inequality $r<2x2=5x-17$ $a\left(3.2\right)$ b. (-2,9) c. (1,6) width. If the area $4\left(3.1\right)$ $otte$ $a16$ less than 50 m 19. The length of the wall is 12 m more than its which of the following could be its length? a. 3 m b. 4 m c1. 5 m d. 16 m
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