13. Find the roots of the equation x+9x+ 18-0. A. 3 or 6 B. 3 or-6 C.-3 or 6 D.-3 or -6

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
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Chapter9: Quadratic Functions And Equations
Section9.6: Solving Quadratic Equations By Using The Quadratic Formula
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B. MULTIPLE CHOICE, Directions: Read and analyze each item carefully, Encircle the
letter of the correct answer.
5. Which of the following is a quadratic equation?
A. 3x+5-0
B. +4x-12-0
C. x-3x +4x -5
0-1-
6. What kind of roots does the equation -10x+ 25-0 have?
A. equal and rational
B. unequal and rational
C. unequal and irrational
D. not real
7. What is the nature of the roots of the quadratic equation 3x-x-6-0
A. equal and rational
B. unequal and rational
C. unequal and irrational
D. not real
8. Transform the rational equation into a quadratic equation.
A. x+4x +3-0
B. x-4x + 3 = 0
C.+4x-30
9. Transform the rational equation+-! into a quadratic equation.
C. 2x+5x-10-0
D. 2x-5x-10-0
A. 2 + 5x + 10 0
B. 2x-5x + 10-0
10. What is the sum of the roots?
B. 6
A. 8
C.-6
D.-8
11. What is the product of the roots?
C.-6
D.-8
A. 8
12. Solve the given equation by extracting square roots: x-1-3
B. ± 2
C.3
D. ±4
A. 1
13. Find the roots of the equation x+9x+ 18-0.
B. 3 or -6
C.-3 or 6
D.-3 or -6
A. 3 or 6
14. Find the roots of the equation 2r-3x+ 1 -0.
A. I or !
C.-1 or !
f- 10 1-
15. Find the roots of the equation -8r+ 15 -0.
A. 3 or 5
B. 3 or-5
C.-3 or 5
D.-3 or-5
Transcribed Image Text:B. MULTIPLE CHOICE, Directions: Read and analyze each item carefully, Encircle the letter of the correct answer. 5. Which of the following is a quadratic equation? A. 3x+5-0 B. +4x-12-0 C. x-3x +4x -5 0-1- 6. What kind of roots does the equation -10x+ 25-0 have? A. equal and rational B. unequal and rational C. unequal and irrational D. not real 7. What is the nature of the roots of the quadratic equation 3x-x-6-0 A. equal and rational B. unequal and rational C. unequal and irrational D. not real 8. Transform the rational equation into a quadratic equation. A. x+4x +3-0 B. x-4x + 3 = 0 C.+4x-30 9. Transform the rational equation+-! into a quadratic equation. C. 2x+5x-10-0 D. 2x-5x-10-0 A. 2 + 5x + 10 0 B. 2x-5x + 10-0 10. What is the sum of the roots? B. 6 A. 8 C.-6 D.-8 11. What is the product of the roots? C.-6 D.-8 A. 8 12. Solve the given equation by extracting square roots: x-1-3 B. ± 2 C.3 D. ±4 A. 1 13. Find the roots of the equation x+9x+ 18-0. B. 3 or -6 C.-3 or 6 D.-3 or -6 A. 3 or 6 14. Find the roots of the equation 2r-3x+ 1 -0. A. I or ! C.-1 or ! f- 10 1- 15. Find the roots of the equation -8r+ 15 -0. A. 3 or 5 B. 3 or-5 C.-3 or 5 D.-3 or-5
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