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The Quadratic Formula and Determinants

Authored by Elizabeth Borres

Mathematics

11th - 12th Grade

CCSS covered

Used 5+ times

The Quadratic Formula and Determinants
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20 questions

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1.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Determine the values of a, b, and c for the quadratic equation:

4x2 – 8x = 3

a = 4, b = -8, c = 3

a = 4, b =-8, c =-3

a = 4, b = 8, c = 3

a = 4, b = 8, c = -3

Tags

CCSS.HSA.REI.B.4

CCSS.HSA.CED.A.1

2.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

Use the quadratic formula to solve 2x2 + 2x - 12.

-2, 3

2, 3

2, -3

-2, -3

Tags

CCSS.HSA-REI.B.4B

3.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

Use the quadratic formula to find the solutions for

y = -x2 - 5x + 12

No Real Solution

Media Image
Media Image
Media Image

Tags

CCSS.HSA-REI.B.4B

4.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

Solve Using the Quadratic Formula
 x2 + 4x - 40 = -8

-10 & -4
-4 & 10
-8 & 4
8 & -4

Tags

CCSS.HSA-REI.B.4B

5.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

What should you do first in solving this equation?

x2 + 6x - 13 = 3

Factor

Write down: a = 1, b = 6, c = -13

Subtract 3 from both sides.

Add 3 to both sides.

Tags

CCSS.HSA-REI.B.4B

6.

MULTIPLE CHOICE QUESTION

1 min • 12 pts

The discriminant is

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

Tags

CCSS.HSA-REI.B.4B

7.

MULTIPLE CHOICE QUESTION

5 mins • 12 pts

Media Image

____________
For the function above, is the discriminant positive, negative, or zero?

Positive
Negative
Zero
Not Sure

Tags

CCSS.HSA.REI.B.4

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