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Classwork on discriminants

Authored by Alpana Mosleh

Mathematics

10th - 12th Grade

CCSS covered

Used 6+ times

Classwork on discriminants
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20 questions

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1.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

The discriminant is

aX2  + bX  +  c
b - 4ac
b2 - 4ac
b2 + 4ac

2.

MULTIPLE CHOICE QUESTION

5 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

3.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Find the discriminant of the following equation.

3x2 -x- 2 = 0

5
25
-24
-26

4.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

What does the discriminant tell us?

The maximum or minimum
The y-intercept
The number and type of solutions
The axis of symmetry

Tags

CCSS.HSA-REI.B.4B

5.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

If the discriminant is zero you will have

no real solutions
two real solutions
1 real solution (multiplicity of 2)
1 imaginary solution

Tags

CCSS.HSA-REI.B.4B

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

If the discriminant is positive, then the solution will be

one real solution
two real solutions
no real solutions
one imaginary solution

Tags

CCSS.HSA-REI.B.4B

7.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

If the discriminant is negative, then the solution will be

one real solution
two real solutions
two imaginary solutions
one imaginary solution

Tags

CCSS.HSA-REI.B.4B

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