Quarter 1-Exam in mathematics 9 review.pptx

Quarter 1-Exam in mathematics 9 review

1. It is a polynomial equation of degree two that can be written in the form ax2 + bx + c = 0, where a, b, and c are real numbers and a 0. a. Linear Equation b. Linear Inequality c. Quadratic Equation d. Quadratic Inequality

2. Among are the quadratic equations EXCEPT_______ . a. t 2 – 5t = 6 b. -2m 2 = 50 c. (x + 7) 2 = 0 d. 2 (m +4) = 8

3. Solve by extracting square roots : m 2 = 81. a. m = ±10 b. m = ±9 c. m = ±5 d. m = ±1

4. In the quadratic equation (t – 4)(t + 6) = 5, what are the values of a, b, and c? a. a = 1, b = 2, c = -29 b. a = 1, b = 10, c = -24 c. a = 1, b = -2, c = 29 d. a = 1, b = 2, c = 24

5. What is the standard equation of 2x(x + 1) = 6? a. 2x 2 + 2x + 6 = 0 b. 2x 2 + 2x – 6 = 0 c. 2x 2 – 2x – 6 = 0 d. 2x 2 – 2x + 6 = 0

6. One of the factors of quadratic equation p 2 – 7p + 12 = 0 is (p – 4) and the other is_____. a. ( p + 3 ) b. ( p – 3 ) c. ( p + 8 ) d. ( p – 8 )

7. The roots of 2x 2 + 6x – 8 = 0 are ? 1 and 3 b. 6 and 2 c. 7 and 1 d. – 4 and 1

8. Find the factor of the quadratic equation x 2 – 9x + 20. x = 2/5 or x = -2/3 x = 5/2 or x = -3/2 x = -5/2 or x = 2/3 x = 5/2 or x = -2/3

9. Using quadratic formula, solve the quadratic equation 6x 2 – 11x + 10. a. (x – 4) (x – 5) b. (x – 5) (x + 4) c. (x – 4) (x + 5) d. (x + 4) (x + 5)

10. The following are methods that can be used to solve a quadratic equation EXCEPT. a. Division of Polynomial b. Completing the square c. Extracting square roots d. Quadratic formula

11. The term b2 – 4ac in the quadratic formula is called ___________. a. principal root b. discriminant c. solutions d. extraneous roots

12. Which of the constant makes the quadratic equation x 2 – 12x + _____, a perfect square trinomial? a. 36 b. 24 c. 121 d. 12

13. Analyze the mathematical statement 2x + 8 > 10 a. Twice the number added to eight is greater than ten. b. Twice the number added to eight is less than ten. c. Two number added to eight is greater than ten. d. Two the number added to eight is less than ten.