AV3- 3ºTRI - AVALIAÇÃO - 4 PONTOS

AV3- 3ºTRI - AVALIAÇÃO - 4 PONTOS

2nd Grade

20 Qs

quiz-placeholder

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AV3- 3ºTRI - AVALIAÇÃO - 4 PONTOS

AV3- 3ºTRI - AVALIAÇÃO - 4 PONTOS

Assessment

Quiz

Mathematics

2nd Grade

Medium

Created by

ANDERSON DAVIS

Used 6+ times

FREE Resource

20 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Determine a função por determinante dos pontos ( 1; -2 ) e ( 2; 4 )

y = 6x - 8

y = 6x+8

y = -6x-8

y = 6x - 4

2.

MULTIPLE CHOICE QUESTION

5 mins • 3 pts

Analise o comportamento de Δ da função y = x²-3x+4

Δ > 0, logo ∃ x1 e x2

Δ < 0, logo ∄ x1 e x2

Δ = 0, logo ∃ x1 e x2

Δ > 0, logo ∃ x1 = x2

3.

MULTIPLE CHOICE QUESTION

1 min • 2 pts

Para a função y = ax+b, responda sobre o coef. angular ( a ) e coef. linear ( b )

quando a> 0 a função é decrescente

para b<0 significa que a reta passa entre os quadrantes 3 e 4 do plano cartesiano

quando a< 0 a função é crescente

a função y = ax+b é uma curva no gráfico

4.

MATCH QUESTION

2 mins • 1 pt

Combine o seguinte

a>0 ,b>0

a função é uma reta

y = ax+b

y=2x-3

a>0, b<0

a função é uma parábola

y=ax²+bx+c

y=ax²+bx+c

a,b,c são os coeficientes da parábola

y = 2x+3

5.

MULTIPLE CHOICE QUESTION

2 mins • 2 pts

Sendo as funções f(x) = 3x+5 e g(x) = -5x+3, então f(0)+g(0) =

5

6

7

8

6.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Sendo as funções f(x) = 3x+5 e g(x) = -5x+3, então f(0)-g(0) =

2

3

4

5

7.

MULTIPLE CHOICE QUESTION

2 mins • 3 pts

Sendo as funções f(x) = 3x+5 e g(x) = -5x+3, então g(0)-f(0) =

0

-1

-2

-3

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