
2ºREC.Aval1. 3ºTRI MAT 2º SérieFunção cresc.decresc.
Authored by GILVANO NEUNDORF
Mathematics
11th Grade
Used 2+ times

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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Determine se as funções abaixo são crescentes (C) ou decrescentes (D):
A) y = 2x - 3
B) y = -2x + 7
C) y = 5 - 3x
D) y = 4x + 2
a) C, D, D, C
b) D, C, C, D
c) C, C, D, C
d) D, D, C, C
e) C, D, C, D
2.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
Dado o gráfico: Podemos afirmar que sua função é:
f(x) = -2x + 4
f(x) = 3x + 4
f(x) = 2x - 4
f(x) = -2x + 6
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
O ponto em que uma reta cruza o eixo x é conhecido como zero da função ou raiz. Dada a função f(x)= 4x + 8, podemos afirmar que o zero da função é:
-3
6
2
-2
3
4.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
A função representada através da tabela é:
f(x) = 2x+4
f(x) = 5x+4
f(x) = 6x+1
f(x) = – 3x+4
f(x) = 3x+4
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
De acordo com a seguinte função f(x) = 2x - 6. Qual afirmação é a correta?
a) a raiz é igual a 6 e a função é decrescente
b) a raiz é igual a 3 e a função é decrescente
c) a raiz é igual a 3 e a função é crescente
d) a raiz é igual a - 3 e a função é crescente
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Seja g(x) = 2x - 5, qual é o valor de g(15)?
20
25
30
35
40
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual a taxa de variação da função afim em que f(1)=5 e f(3)=17?
1
3
5
6
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