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IsabelaHipoliti
@IsabelaHipoliti
January 2020
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Assinale a alternativa que contém a equação da reta que passa pelos pontos A =(1,5; 3) e B = (2,6).
Escolha uma:
f(x) = 2x + 5
f(x) =6x - 6
f(x) = 2x Incorreto
f(x) = 5x + 11
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3478elc
Verified answer
A =(1,5; 3) e B = (2,6).
a = 6 - 3 ==> 3 ==> 3.10 ==> a = 6
2 - 1,5 0,5 5
===================================================
(2,6) e a = 6
y = ax + b ==> 6.2 + b = 6 ==> b = 6 - 12 ==> b = - 6
================================================
y = ax + b ==> y = 6x - 6 ou f(x) = 6x - 6
2 votes
Thanks 1
albertrieben
Boa noite Isabela
x y 1 x y
1.5 3 1 1.5 3
2 6 1 2 6
det = 3x + 2y + 9 - 6 - 6x - 1.5y = 0
0.5y - 3x + 3 = 0
y - 6x + 6 = 0
f(x) = 6x - 6
3 votes
Thanks 2
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Verified answer
A =(1,5; 3) e B = (2,6).
a = 6 - 3 ==> 3 ==> 3.10 ==> a = 6
2 - 1,5 0,5 5
===================================================
(2,6) e a = 6
y = ax + b ==> 6.2 + b = 6 ==> b = 6 - 12 ==> b = - 6
================================================
y = ax + b ==> y = 6x - 6 ou f(x) = 6x - 6
x y 1 x y
1.5 3 1 1.5 3
2 6 1 2 6
det = 3x + 2y + 9 - 6 - 6x - 1.5y = 0
0.5y - 3x + 3 = 0
y - 6x + 6 = 0
f(x) = 6x - 6