Quadratic Formula and Discriminant

Quadratic Formula and Discriminant

9th Grade

15 Qs

quiz-placeholder

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Quadratic Formula and Discriminant

Quadratic Formula and Discriminant

Assessment

Quiz

Mathematics

9th Grade

Practice Problem

Hard

CCSS
HSA-REI.B.4B, HSA-SSE.B.3B, HSN.CN.C.7

+1

Standards-aligned

Created by

Anthony Clark

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15 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

What is the discriminant and how many solutions would this quadratic have? 4x2 + 6x - 4 = 0

-28, No Solutions

28, 2 Solutions

100, 2 Solutions

-100, No Solutions

Tags

CCSS.HSA-REI.B.4B

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

What is the discriminant of this equation?

64

52

9

0

Tags

CCSS.HSA-REI.B.4B

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

What is the discriminant and how many solutions would this quadratic have?

205, 2 Solutions

-71, No Solutions

121, 2 Solutions

121, 1 Solution

Tags

CCSS.HSA-REI.B.4B

4.

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

Tags

CCSS.HSA-REI.B.4B

CCSS.HSN.CN.C.7

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Solve x2 - 5x + 10 = 0

(5 - i√15)/2  ,  (5 + i√15)/2

(5 - √15)/2  ,  (5 + √15)/2

(5 - i√65)/2  ,  (5 + i√65)/2

(5 - √65)/2  ,  (5 + √65)/2

Tags

CCSS.HSA-REI.B.4B

CCSS.HSN.CN.C.7

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

What is the discriminant and how many solutions would this quadratic have? 3x2 + 3x + 4 = -3

-75, No Solutions

-75, 2 Solutions

-39, No Solutions

-39, 1 Solution

Tags

CCSS.HSA-REI.B.4B

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

If the discriminant of the quadratic equation is equal to 4, how many real solutions are there?

None

One

Two

Infinite

Tags

CCSS.HSA-REI.B.4B

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