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valderene
@valderene
March 2022
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determine o coeficiente angular de uma reta que passa pelos pontos A(1;2) e B(-3;4).
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claudiasoueu
A =
y2 - y1
x2 - x1
a =
4 - 2
-3 - 1
a =
2
-4
a = - 1/2
==================
y= ax + b
2 = -1/2 (1) + b
2 + 1/2 = b
b = 5/2
========
Equação procurada:
y =
-x
+
5
2 2
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Valderene
December 2019 | 0 Respostas
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x2 - x1
a = 4 - 2
-3 - 1
a = 2
-4
a = - 1/2
==================
y= ax + b
2 = -1/2 (1) + b
2 + 1/2 = b
b = 5/2
========
Equação procurada:
y = -x + 5
2 2