1. Direction: Encircle the letter of the correct answer. 1. Which of the following is a quadratic equation? a. x2 +6=0 b. 2x3 - 32 = x c. 2x-10 = 15 2. What are the factors of the equation y2 = 64? a. (y + 8) (y + 8) b. (x-8)(x-8) c. (y + 8)(y-8) 3. Which of the following is equal to x2 + 4x + 3? a. (x + 1)(x + 3) b. (x + 2)(x+2) c. (x + 4)(x - 1) d. (x - 4)(x - 1) 4. Choose the correct values of a, b, and cin the equation 5x2 - x + 6 = 0. a. a = 5, b = 1, C = 6 b. a = 6, b = -1, c = 5 c. a = 5, b = -1, c=6 d. a = -5, b = -1, c= -6 5. What is the standard form of the equation x2 + 6 = 4x? a. x2 - 4x +6=0 b. x2 +4x - 6=0 c. x2 = 4x - 6 d. x2 - 4x - 6=0 6. What term do you need to add to the quadratic x? - 12x to create a perfect square trinomial? a. -6 b. 12 c. 36 d. 144 7. Which of the following is true about a quadratic equation? a. The graph always crosses the x-axis. c. The graph is always symmetric about the y-axis. b. The graph always increases. d. The equation is always considered a second degree equation. 8. What is the nature of the roots of a quadratic equation having a discriminant equal to 0? a. two equal real roots c. two unequal real roots c. two imaginary roots d. no real roots 9. What is the sum of the roots of the quadratic equation x2 +6x-14=0? b. -6 d. 14 10. What is the product of the roots of the quadratic equation x² +6x - 14 = 0? a. 6 b. -6 c. 14 d. -14 a. -7 C.-3​