Equações

Equações

9th Grade

17 Qs

quiz-placeholder

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Equações

Equações

Assessment

Quiz

Mathematics

9th Grade

Practice Problem

Hard

CCSS
HSA.REI.B.4, HSA-REI.B.4B, HSA.APR.A.1

Standards-aligned

Created by

Ana Almeida

Used 91+ times

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17 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Media Image

Quais os coeficientes?

a = 6

b = 2

c = 1

a=9

b= - 6

c = 1

a= 9

b= 6

c= 1

a= 2

b= 6

c= 1

Tags

CCSS.HSA.APR.A.1

CCSS.HSA.REI.B.4

2.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Qual das equações abaixo é do segundo grau?

x² + 3x - 1 = x² + 10

0x² + 4x – 3 = 0

x + x + 6 = 0

x · (x - 5) = 0

2x³ - 8x² - 2 = 0

Tags

CCSS.HSA.REI.B.4

3.

MULTIPLE SELECT QUESTION

5 mins • 1 pt

Quais das equações do 2º grau a seguir, são incompletas? (forma reduzida)

x² - 7x + 10 = 0

4x² - 4x + 1 = 0

– x² – 7x = 0

x² - 16 = 0

x² + 2x + 7= 2x + 7

4.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Media Image

A equação reduzida do 2º grau coresponde a:

3x² - 11x - 4=0

x² - 5x - 4=0

13x² - 4=0

x² - 5x - 4=0

3x² - 5x - 4 = 0

Tags

CCSS.HSA.REI.B.4

5.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

A solução da equação x² = 100, é:

50 e - 50

0 e 10

Não tem soluções

0 e - 10

10 e - 10

6.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

A solução da equação x² + 9 = 0, é:

9 e - 9

3 e - 3

Não tem soluções

81 e - 81

0 e - 3

7.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

A solução da equação x² + 4x = 0, é:

4 e - 4

0 e 4

0 e - 4

2 e - 2

0 e - 2

Tags

CCSS.HSA.REI.B.4

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