Discriminant and Quadratic Formula Practice

Discriminant and Quadratic Formula Practice

9th Grade - University

20 Qs

quiz-placeholder

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Discriminant and Quadratic Formula Practice

Discriminant and Quadratic Formula Practice

Assessment

Quiz

Mathematics

9th Grade - University

Practice Problem

Hard

CCSS
HSA-REI.B.4B, 8.EE.A.2, HSN.CN.C.7

Standards-aligned

Created by

Barbara White

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20 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

How many x-intercepts will the equation: 8x2 = + 8x - 2 have?
1
2
3
none

2.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

How many roots will the equation: -4x2  - 12x + 4= 1 have?
1
2
3
none

3.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

The discriminant is
aX2  + bX  +  c
b - 4ac
b2 - 4ac
b2 + 4ac

Tags

CCSS.HSA-REI.B.4B

4.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Determine the value of the discriminant and name the nature of the solution for the following:
x2 + 2x - 63
Remember:  b2 - 4ac
256 - 2 reals - Rational
√(-256 - 2 imaginary solutions
√(137) - 2 reals - Irrational
123 - 2 reals - Rational

Tags

CCSS.HSA-REI.B.4B

5.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Determine the value of the discriminant and name the nature of the solution for the following:
x2 + 8x - 84
Remember:  b2 - 4ac
256 - 2 reals - Rational
400 - 2 reals - Rational
√(-400) - 2 non-real complex - imaginary
20 - 2 reals - Rational

Tags

CCSS.HSA-REI.B.4B

6.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Determine the value of the discriminant and name the nature of the solution for the following:
x2 + 7x + 13
Remember:  b2 - 4ac
400 - 2 reals
0 - 1 real
√(-400) - 2 non-real complex - imaginary
-3 ---- 2 non-real complex - imaginary

Tags

CCSS.HSA-REI.B.4B

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

If the discriminant is negative, how many solutions and of what type?
1 real solution
2 irrational solutions
2 complex solutions

Tags

CCSS.HSA-REI.B.4B

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