Função do Segundo Grau Flashcards

1
Q

Qual o formato da equação?

A

f(x)=y=ax²+bx+c

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2
Q

O que significa c?

A

Ponto onde o gráfico corta o eixo das ordenadas (y).

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3
Q

Como achar a raiz da equação?

A

Faz y=0

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4
Q

Delta

A

delta=b²-4ac

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5
Q

Bháskara

A

x=(-b+-√Δ)/2a

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6
Q

X do vértice

A

Xv= -b/2a

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7
Q

Y do vértice

A

Yv= -Δ/4a

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8
Q

Quais as informações necessárias para construir um gráfico?

A
  1. Identificar c;
  2. Analisar a;
  3. Achar as raízes;
  4. Achar Xv e Yv.
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9
Q

Estude Δ

A

Δ>0: Duas raízes distintas. (gráfico corta x em dois pontos)
Δ=0: Duas raízes iguais. (gráfico corta x em um ponto)
Δ

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