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Quadratic Formula

Authored by Brian A

Mathematics

11th Grade

CCSS covered

Used 4+ times

Quadratic Formula
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11 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

5 mins • 5 pts

1/2

-1

1

(1 , -1)

Tags

CCSS.HSA-REI.B.4B

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Why are quadratic equations set equal to zero?

Because zero is an easy number to work with.

Because we are trying to find the x-intercepts and that happens when y=0.

Because setting it equal to zero helps us find the y-intercepts.

None of the above

Tags

CCSS.HSA-REI.B.4B

3.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

 2m2=2m+122m^2=-2m+12  
Solve using the quadratic formula.

 x=2,3x=2,-3  

 x=3,2x=3,-2  

 x=1±13x=1\pm\sqrt{13}  

No Solution

Tags

CCSS.HSA-REI.B.4B

4.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Solve using the quadratic formula...
9x2 = 4 + 7x

x = 2 and x = 3
x = -1 and x = .25
x = 1 and x = -.45
x = 1.16, and x = -.38

Tags

CCSS.HSA-REI.B.4B

5.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

Solve using the quadratic formula:

4x2 + 4x + 1 = 0

x = -½

x = -2

x = 0

x = ½

Tags

CCSS.HSA-REI.B.4B

6.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

Use the quadratic formula to find the solutions for

y = -x2 - 5x + 12

-4.9 and -0.1

-8.54 and 8.54

-0.45 and 3.55

-6.77 and 1.77

Tags

CCSS.HSA-REI.B.4B

7.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Media Image

Solve Using the quadratic formula

A
B
C
D

Tags

CCSS.HSA-REI.B.4B

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