Para qual valor de m a reta passa pelos pontos A (2m. 4m- 6) e B(-3, 12) tem coeficiente angular -2/3.
Ola Shawn
o coeficiente angular
a = Δy/Δx
a = (4m - 6 - 12)/(2m + 3) = -2/3
(4m - 18)/(2m + 3) = -2/3
12m - 54 = -4m - 6
16m = 48
m = 48/16 = 3
pronto
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Ola Shawn
o coeficiente angular
a = Δy/Δx
a = (4m - 6 - 12)/(2m + 3) = -2/3
(4m - 18)/(2m + 3) = -2/3
12m - 54 = -4m - 6
16m = 48
m = 48/16 = 3
pronto