Função Quadrática
Quiz
•
Mathematics
•
11th Grade
•
Practice Problem
•
Medium
LEANDRO SILVA
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10 questions
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1.
MULTIPLE CHOICE QUESTION
5 mins • 3 pts
Assinale a função quadrática:
f(x) = 2x
f(x) = x + 2
f(x) = x²
f(x) = 2
2.
MULTIPLE CHOICE QUESTION
5 mins • 3 pts
O gráfico de uma função quadrática é:
Uma reta crescente.
Uma reta decrescente.
Uma reta paralela ao eixo das abcissas (x).
Uma parábola.
3.
MULTIPLE CHOICE QUESTION
5 mins • 3 pts
O gráfico da função f(x) = - x² + 2x - 2 é uma:
Reta crescente.
Reta decrescente.
Parábola com a concavidade voltada para cima.
Parábola com a concavidade voltada para baixo.
4.
MULTIPLE CHOICE QUESTION
5 mins • 3 pts
Construa o gráfico da função f(x) = x² - 2x + 1, usando os valores de x iguais a - 1, 0, 1, 2 e 3.
Em seguida, observe o gráfico e responda:
Em que ponto a parábola toca o eixo das abcissas (eixo x) ?
( 1, 0 )
x = 1 e y = 0
( 0, 1 )
x = 0 e y = 1
( 2, 1 )
x = 2 e y = 1
( 1, 2 )
x = 1 e y = 2 )
5.
MULTIPLE CHOICE QUESTION
5 mins • 3 pts
Construa o gráfico da função f(x) = - x² + 2x + 2 (use x = -1, 0, 1, 2, 3).
Em seguida observe o gráfico e responda:
A parábola toca no eixo das abscissa (eixo x) ?
SIM
NÃO
6.
MULTIPLE CHOICE QUESTION
5 mins • 3 pts
Qual o valor de x na função f(x) = x² - 6x + 9, quando y = 0 ?
x = 0
x = 3
x = 6
x = 9
7.
MULTIPLE CHOICE QUESTION
5 mins • 3 pts
Construa o gráfico da função f(x) = x² - 4x + 3 ( use x = -1, 0, 1, 2, 3, 4,5 ).
Em seguida, observe o gráfico e responda:
Onde a parábola intercepta o eixo das ordenadas (eixo y) ?
y = 0
y = 1
y = 3
y = - 4
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