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Quadratic Equations

Authored by Anthony Clark

Mathematics

9th Grade

CCSS covered

Quadratic Equations
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20 questions

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1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

The standard form of a quadratic equation is:

y = ax2 + bx + c

x = -b/2a

y = a(x - h)2 + k

d = b2 - 4ac

2.

MULTIPLE SELECT QUESTION

1 min • 1 pt

Used to determine the number of solutions of a quadratic equation (choose all that apply):

Discriminant

axis of symmetry

d = b2 - 4ac

x = - b/2a

Tags

CCSS.HSA-REI.B.4B

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Find the axis of symmetry and vertex for y = -x2 - 2x - 8

x = -1; vertex (-1, 7)

x = -1; vertex (-1, -5)

x = 1; vertex (1, -11)

x = 1; vertex (1, -5)

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Using the discriminant, find the number of solutions to y = x2 - 10x + 25

2

1

0

Tags

CCSS.HSA-REI.B.4B

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

An equation that can be written in the form y = ax2 + bx + c

Quadratic equation

MInimum

Linear equation

Maximum

Tags

CCSS.8.EE.C.7B

6.

MULTIPLE SELECT QUESTION

1 min • 1 pt

Media Image

Select the solutions to the equation

4x2 + 11x + 7 = 0

x = - 1.75

x = 6

x = - 1

x = 1

7.

MULTIPLE SELECT QUESTION

1 min • 1 pt

Media Image

What are the solutions to the quadratic equation?

x = -4

x = 1

x = -1

x = 2

x = 4

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