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Question 9 The solution to the equation (x - 4)? - 5 - 16 are D. -41 11 A. 4 1 V21 B. -4+ V21 C. 41 VII Question 10 The graph of the quadratic function y = ax + bx + c is shown below. The value of the discriminant is A. Positive B. Negative C. Zero D. unable to be determined Question 11 The graph of a quadratic function with equation y = ax2 + bx + c. The vertex is on the x - axis. Five statements have been made about the graph: Statement 1: The discriminant of ax2 + bx + c = 0 is zero. Statement 2: The discriminant of ax2 + bx + c = 0 is positive. Statement 3: The discriminant of ax2 + bx + c = 0 is negative. Statement 4: The value of a is positive. Statement 5: The value of a is negative. Only two of the five statements are correct. Write the number of the two correct statements in the boxes. Question 12 Determine the value of k, to the nearest hundredth, for which the quadratic equation 2x2 - 5x + k = 0 has two real equal roots. Math 20-1 Chapter 4 Unit Assignment 14Question 13 The area of the rectangular figure below is 60 ma. Determine the value of x 2 m & m x m Question 14 Solve the following Quadratic Equations by factoring. a) 6x' +17x-14=0 b) 25x2 - 36=0 Question 15 Completely factor the following polynomials. a ) 3 ( x - 2 ) - 14 ( x - 2 ) - 5 b) 18 (x + 1) 2 - 8 ( x + 2) 2 Math 20-1 Chapter 4 Unit Assignment /5