SUMMATIVE EVALUATION


DIRECTION: Choose the letter that corresponds to your answer

1. Which of the following quadratic equations has no real roots?

A. 2x² + 4x = 3
B. t² - 8t - 4 = 0
C. 3s² - 2s = -5
D. -2r² + r + 7 = 0

2. What is the nature of the roots of the quadratic equation if the value of its discriminant is zero?

A. The roots are not real
B. The roots are irrational and not equal
C. The roots are rational and not equal
D. The roots are rational and equal

3. One of the roots of 2x² - 13x + 20 = 0 is 4. What is the other root?

A. - 2/5
B. - 5/2
C. 2/5
D. 5/2

4. What are the roots of the quadratic equation x² + x - 56 = 0?

A. 2 and -1
B. 8 and -7
C. -8 and 7
D. 3 and -2

(see photo to see the 5-15 questions)​