Completing the Square with Complex Solutions

Completing the Square with Complex Solutions

9th Grade

8 Qs

quiz-placeholder

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Completing the Square with Complex Solutions

Completing the Square with Complex Solutions

Assessment

Quiz

Mathematics

9th Grade

Hard

Created by

Anthony Clark

FREE Resource

8 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

If the discriminant is negative, then the quadratic has:

1 Rational Solution

2 Rational Solutions

2 Irrational Solutions

2 Complex Solutions

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Solve for x:

3x2 - 6x + 6 = 0

x = 1± i

x = 3, -6

x = 4.8, 2.7

Undefined

3.

MULTIPLE SELECT QUESTION

1 min • 1 pt

If the discriminant of a quadratic equation is -42, the following is true about the solutions:

1 solution

2 solutions

rational

irrational

complex

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

If the discriminant is negative, you will have....

two real solutions

two irrational solutions

two imaginary solutions

one solution

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Solve -2x2 + 4x = 9

(2 - i√14)/2   ,   (2 + i√14)/2

(2 - i√-56)/2   ,   (2 + i√-56)/2

(2 - i√-14)/2   ,   (2 + i√-14)/2

(2 - √14)/2   ,   (2 + √14)/2

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Solve 2x2 – 6x + 5 = 0 

x=3/2±i/2

x=3 ± i/2

x=3/2 ± i

x=3±i

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

If the value of the discriminant is -20, what type of solutions would that represent for the quadratic equation?

two real solutions

two imaginary (complex) solutions

a double root (the same real solution twice)

one real solution

8.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Find the value of "c" that completes the square. Then rewrite the trinomial as a perfect square.