
Intervalos
Presentation
•
Mathematics
•
KG
•
Medium
Paula Jasmin
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4 Slides • 3 Questions
1
Intervalos
by Paula Jasmin
2
Definição de Intervalos
Intervalos são subconjuntos do conjunto real que podem ser indicados por desigualdades.
Existe a forma gráfica que é um segmento de reta ou semireta.
Existe a forma algébrica.
3
Forma algébrica
4
Extremos abertos ou fechados
Bolinha vazia significa que o número não faz parte do intervalo.
Bolinha cheia significa que o número faz parte do intervalo.
No exemplo -1 NÂO faz parte do intervalo e 1 faz parte.
5
Multiple Choice
Qual afirmativa verdadeira?
-4 pertence ao intervalo.
-4 não pertence ao intervalo
A forma algébrica é [-4, 7]
6
Multiple Choice
Qual intervalo representa a desigualdade {x∈R tal que 3≤x<7}
[3,7)
[3,7]
(3,7)
7
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by Paula Jasmin
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