1. It is a polyn

Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
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2021.10.25 10:55
Name:
Grade & Section:
Written Work #3:
Score:
Multiple Choice: Write the letter of the correct answer before each number.
1. It is a polynomial of degree of 2 that can be written in the form ax2 + bx +c = 0.
a. Linear equation
2. Which of the following is a quadratic equation?
a. 2r2 + 4r - 1
b. linear inequality
c. quadratic equation
d. quadratic inequality
b. 3t - 7 = 2
C. s? +s-4 =0
d. 2x2 -7x 2 3
3. In the quadratic equation 3x² + 7x – 4 = 0, which is the quadratic term?
a. x2
b. 7x
C. 3x2
d. -4
4. How many real roots does the quadratic equation x2 + 5x + 7 = 0 have?
a. О
b. 1
с. 2
d. 3
5. The roots of the quadratic equation are -5 and 3, which of the ff. quadratic equation has these roots?
a. x2 – 8x + 15 = 0
b. x2 + 8x + 15 = 0
C. x2 – 2x – 15 = 0
d. x2 + 2x – 15 = 0
6. What is the nature of the roots of a quadratic equation if the value of its discriminant is zero?
c. rational and not equal d. real and equal
a. no real roots b. irrational and not equal
7. One of the roots of 2x² -13x + 20 = 0 is 4. What is the other root?
b. -5/2
a. -2/5
с. 2/5
d. 5/2
8. What are the roots of the equation 2x2 + 9x -52 = 0?
b. 8 and -7
C. -8 and 7/2
d. 3 and -2
a. 2 and -1
9. What is the sum of the roots of the quadratic equation x? +6x – 14 = 0?
d. 14
b. -3
с. 6
a. -7
10. What is the product of the roots of the equation x² + 6x - 14 = 0?
b. -14
d. -3
С. 6
a. -7
Performance Task #3:
h2 - 4ac given the following values of a, b, and c.
Transcribed Image Text:Shot on Y11 Vivo Al camera 2021.10.25 10:55 Name: Grade & Section: Written Work #3: Score: Multiple Choice: Write the letter of the correct answer before each number. 1. It is a polynomial of degree of 2 that can be written in the form ax2 + bx +c = 0. a. Linear equation 2. Which of the following is a quadratic equation? a. 2r2 + 4r - 1 b. linear inequality c. quadratic equation d. quadratic inequality b. 3t - 7 = 2 C. s? +s-4 =0 d. 2x2 -7x 2 3 3. In the quadratic equation 3x² + 7x – 4 = 0, which is the quadratic term? a. x2 b. 7x C. 3x2 d. -4 4. How many real roots does the quadratic equation x2 + 5x + 7 = 0 have? a. О b. 1 с. 2 d. 3 5. The roots of the quadratic equation are -5 and 3, which of the ff. quadratic equation has these roots? a. x2 – 8x + 15 = 0 b. x2 + 8x + 15 = 0 C. x2 – 2x – 15 = 0 d. x2 + 2x – 15 = 0 6. What is the nature of the roots of a quadratic equation if the value of its discriminant is zero? c. rational and not equal d. real and equal a. no real roots b. irrational and not equal 7. One of the roots of 2x² -13x + 20 = 0 is 4. What is the other root? b. -5/2 a. -2/5 с. 2/5 d. 5/2 8. What are the roots of the equation 2x2 + 9x -52 = 0? b. 8 and -7 C. -8 and 7/2 d. 3 and -2 a. 2 and -1 9. What is the sum of the roots of the quadratic equation x? +6x – 14 = 0? d. 14 b. -3 с. 6 a. -7 10. What is the product of the roots of the equation x² + 6x - 14 = 0? b. -14 d. -3 С. 6 a. -7 Performance Task #3: h2 - 4ac given the following values of a, b, and c.
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