
Desvendando Sistemas Lineares
Mathematics
2nd Grade
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15 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
O que é um sistema linear?
Um conjunto de equações com incógnitas que podem ser resolvidas juntas.
Um número sozinho.
Uma figura geométrica.
Um tipo de animal.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual destas é uma equação linear?
<katex latex="x + y = 5"></katex>
<katex latex="x^2 + y = 5"></katex>
<katex latex="x^3 = 5"></katex>
<katex latex="x = y^2"></katex>
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Quantas incógnitas tem o sistema abaixo? <katex latex="\begin{cases} x + y = 4 \\ x - y = 2 \end{cases}"></katex>
1
2
3
4
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual é a solução do sistema: <katex latex="\begin{cases} x + y = 4 \\ x - y = 2 \end{cases}"></katex>
<katex latex="x=3"></katex>, <katex latex="y=1"></katex>
<katex latex="x=2"></katex>, <katex latex="y=2"></katex>
<katex latex="x=1"></katex>, <katex latex="y=3"></katex>
<katex latex="x=4"></katex>, <katex latex="y=0"></katex>
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual destas NÃO é uma equação linear?
<katex latex="2x + 3y = 7"></katex>
<katex latex="x^2 + y = 5"></katex>
<katex latex="x + y = 0"></katex>
<katex latex="3x - y = 2"></katex>
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Se <katex latex="x + y = 6"></katex> e <katex latex="x = 2"></katex>, qual é o valor de <katex latex="y"></katex>?
2
4
6
8
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual é o valor de <katex latex="x"></katex> na equação <katex latex="x - 5 = 0"></katex>?
0
5
-5
10
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