Estudo do sinal e inequações de 1º e 2º grau
Quiz
•
Mathematics
•
9th - 11th Grade
•
Hard
Júlia Tesser
Used 4+ times
FREE Resource
6 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Observe o gráfico e escolha a opção com a solução correta para f(x) ≤ 0.
S={x ∈ R / -4 ≥ x ≥ -1}
S={x ∈ R / x ≤ -4 e x ≤ -1}
S={x ∈ R / -4< x < -1}
S={x ∈ R / -4 ≤ x ≤ -1}
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Considere um reta que passa pelos pontos (0, 3) e (1, 0). Para que valores reais de x a função é positiva?
{x ∈ R | x<1}
{x ∈ R | x>1}
{x ∈ R | x<3}
{x ∈ R | x>3}
3.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Considere um parábola que corta o eixo das abscissas nos pontos (-7,0) e (5, 0), côncova para baixo. Para que valores reais de x a função é positiva?
S={x ∈ R / x < -7 e x > 0}
S={x ∈ R / x < -7 e x < 5}
S={x ∈ R / x > -7 e x < 5}
S={x ∈ R / x < -7 e x > 5}
4.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Quais dos quadros abaixo representa o estudo de sinal correto da inequação (x−4)(x−2) ≥ 0?
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
A inequação -6x2+7x-1 ? 0 tem a seguinte solução: S = {x ∈ R / x < 1/6 ou x > 1}. Qual é o sinal da desigualdade?
≥
>
≤
<
6.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
A solução da inequação quociente é:
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