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The Discriminant

Authored by Ms. Rogala

Mathematics

8th - 9th Grade

CCSS covered

Used 18+ times

The Discriminant
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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What types of solutions can a quadratic equation have?

rational solutions

irrational solutions

imaginary solutions

all of the above

Tags

CCSS.HSA-REI.B.4B

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

 25\sqrt{-25}  is equivalent to

 55  

 5-5  

 5i5i  

 5i-5i  

Tags

CCSS.HSN.CN.A.1

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

If the discriminant is a positive perfect square (example: 36), the solutions to the quadratic equation are

real, rational and unequal

real, irrational and unequal

real, rational and equal

imaginary

Tags

CCSS.HSA-REI.B.4B

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

If the discriminant is a positive nonperfect square (example: 17), the solutions to the quadratic equation are

real, rational and unequal

real, irrational and unequal

real, rational and equal

imaginary

Tags

CCSS.HSA-REI.B.4B

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

If the discriminant is a negative number (example: -10), the solutions to the quadratic equation are

real, rational and unequal

real, irrational and unequal

real, rational and equal

imaginary

Tags

CCSS.HSA-REI.B.4B

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

If the discriminant is zero, the solutions to the quadratic equation are

real, rational and unequal

real, irrational and unequal

real, rational and equal

imaginary

Tags

CCSS.HSA-REI.B.4B

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

If the roots of a quadratic equation are real, irrational and unequal, the discriminant could have a value of

1

0

8

-6

Tags

CCSS.HSA-REI.B.4B

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