1. Which of the following is a quadratic equation? A.3p - 9 = 8 B. 7y2 - 12y > 3 C. 2m2 + 8m - 3 D. -6s = 452 + 2 2. What is the nature of the roots of a quadratic equation whose discriminant is zero? A. Not real B. Real and equal C. Irrational and not equal D. Rational and not equal 3. What is the sum of the roots of the quadratic equation m2 + 2m -5= 0? A - 2 C-5 D. 5 B. 2 4. Which of the following equations represents a quadratic function? A. y = 5x + 2 B. y = x2 -8 c. 2y2 =-6+ 3x D. y = 3x + 22 5. What is the vertex of the quadratic function on the right? A (0,1) B. (0, -1) C. (-1,0) D. (1.0) Which of the following equations has a graph obtained by moving the graph of y = x2, 3 units to the right? A. y = (x + 3)2 B. y = 3x2 Cy= (x - 3)2 D.y=-3x2 7. Which of the following situations shows direct variation? A Number of items unsold and commission of the seller. B. Fare of the passenger to the distance of destination. C. Number of students in a classroom and size of available space. . D. Speed of the car to the time spends in travelling a certain distance 8. A car travels a distance(d) kilometer in t hours. The formula that relates d to tis d = kt If k = 10, what is the variation statement? A. d=100 B. d=207 C. d=301 D. d = 400
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